Recently, BoomTown reported that talks between Microsoft and Yahoo had gotten “hot and heavy.”

That mood seems to be continuing, as many sources close to the situation on both sides said that the pair are coming ever closer to a search and advertising partnership deal.

Said one source: “It’s closer than it has ever been…we’re finally talking about the how rather than the if.”

“It’s meaningful,” added another source. “The fact that there is even progress and engagement, after so many failed attempts between us, says a lot.”

Indeed, it remains a good sign that there seems to be a lot of engagement between the two sides of late, and some sources think a deal could even be struck within the next few weeks.

As I also reported last week, the latest idea is one in which Yahoo (YHOO) would take over both search and display advertising sales and Microsoft (MSFT) would run the tech for both behind the scenes.

It’s not clear if trading other assets–such as content–or an investment in Yahoo by Microsoft are being considered too.

In any case, any such deal would be a major shift for both companies in their business focus and would also tether them tightly together.

Many think they need to be tethered, given that Google (GOOG) overwhelmingly dominates the lucrative search market. Yahoo is strong in display, although that market has been harder hit in the recent economic downturn.

But whether or not Yahoo and Microsoft can come to a partnership agreement–given the deep complexities of the situation, the wariness over controlling key technologies and tense history between them–is a big if, of course.

Still, sources on both sides seem more positive than ever before.

Microsoft execs, for their part, report that new Yahoo CEO Carol Bartz is much more straightforward to work with than former CEO Jerry Yang.

And Yahoo’s side seems convinced that Microsoft appears more willing to make a deal happen and is more flexible on terms than in previous encounters.

Both sides are using very small teams to discuss the possible partnership, mostly in Silicon Valley. Some of the Redmond, Wash.-based Microsoft team, in fact, are in the Bay area now.

Sources said those involved on the Microsoft side include: Digital head Qi Lu, a former Yahoo tech star; top M&A and strategy exec Charles Songhurst; Online Audience Business SVP Yusuf Mehdi; and several others.

On the Yahoo side: North America EVP Hilary Schneider, who leads the efforts; General Counsel Michael Callahan; top Yahoo ad operations techie Mark Morrissey, who was key to its revival of the Panama ad system and has recently been leading product development on its new ad platform; finance SVP and Chief Treasury Officer Mike Gupta; and Products EVP and CTO Ari Balogh, although he is more in the background.

Of course, the only two execs who will matter, if these teams finally manage to hash out details, are Yahoo’s Bartz and Microsoft CEO Steve Ballmer, as well the both companies’ boards.

Interestingly, Ballmer is slated to be at Stanford University’s Memorial Auditorium to give a lecture on innovation and entrepreneurship as part of the Entrepreneurial Thought Leaders Seminar on Wednesday afternoon.

Whether Ballmer is seeing Bartz on this trip or not is not clear.

But he has to at some point. The approval of a deal–which could be struck soon, if terms can be reached–will be entirely their call.

[Postcard image courtesy of CarbonClothing on Zazzle.com.]

Earlier today, BoomTown posted a video of star venture capitalist John Doerr’s 10 tips to start-ups for surviving the econalypse that he ticked off at a roundtable in Silicon Valley on Wednesday.

Beside the words of wisdom from the Kleiner Perkins Caufield & Byers partner, I also trolled for advice from the panel of well-known entrepreneurs I moderated at VentureBeat’s “How to manage your start-up in the downturn” event.

Thus, here is the i-will-survive take from Jason Calacanis of Mahalo, Toni Schneider, chief executive of Automattic, the company that makes the WordPress blogging software, Nirav Tolia of Web 1.0’s Epinions and Max Levchin of Slide.

As an added bonus, Ram Shriram, one of Google’s first investors, also weighs in. And, of course, the inevitable blogger Robert Scoble gives his two cents (and also freaks me out once again!).

Here’s the video of the entrepreneurs, and below it, for your viewing pleasure, two versions of “I Will Survive” by Gloria Gaynor (the classic) and Cake (the weirdly good one):

It will take place at the Stanford Park Hotel in Palo Alto from 8 a.m. to noon.

Toni Schneider, chief executive of Automattic (the company that makes the WordPress blogging software) will join Max Levchin of Slide, Jason Calacanis of Mahalo, O’Melveny & Myers’ Sam Zucker, and Nirav Tolia of Web 1.0’s Epinions.

Along with my group, for whom I am planning all sorts of verbal tortures (”Exactly how much do you make?”), there is also a panel of investors, moderated by VentureBeat’s Matt Marshall, which features: John Doerr of Kleiner Perkins Caufield & Byers; Ram Shriram, one of Google’s first investors, Ron Conway, Kittu Kolluri of New Enterprise Associates and Matt Cohler of Benchmark Capital.

Oh, it is sure to be a festival of Web 2.0 pondering.

Said Marshall in a post about the gathering:

One goal of this event is to provide context and advice for start-up CEOs and founders facing the recession. We’ve handpicked the speakers for their remarkable records and experiences in the previous downturn. …

While the Sequoia [Capital] ‘RIP Good Times’ presentation gave a broad overview of the economic problems facing the tech world, it provided mostly a macro analysis, and a general prescription for companies.

Now is the time to take the analysis one step further, and discuss the variety of situations we see among valley investors and their start-ups: How cleantech companies are different from Internet start-ups, and how under certain conditions, a profitable company may actually be poised for aggressive growth, hiring and M&A–and not necessarily ideal for cost cutting. We intend to explore all of this and more.

Given the fairly predictable ‘Silicon Valley is in circle-the-wagons mode’ story line we’ve been seeing so far in the media, this event is also the Valley’s opportunity to help dispel this myth and explain how the area’s start-ups are actually quite diverse and that there are a mix of strategies at play.”

The event is sold out, but it will be streamed live.

And, as usual, look for a shaky video report of the roundtable from me later!

BoomTown always enjoys chatting with the always sunny Loïc Le Meur of Seesmic (and will, in fact, be appearing at his Paris-based digital conference in December, called Le Web).

But I am not quite sure what to make of his big, happy smile that was in this picture above (click in the image to make it larger), which went with a story in the New York Times about start-ups cutting costs.

In fact, the whole Seesmic crew is grinning awfully hard, putting a very game face on recent layoffs that cut the staff at the video blog service by more than a third.

Money–or, more accurately, non-money–quote from the Times piece:

“To preserve cash, many tech start-ups are rushing to lay off employees and cut expenses. They are shelving their dreams of Google-size riches and getting small, humble and thrifty, all with the more modest goal of surviving the coming economic winter.”

In a less puritan mode, Seesmic raised $6 million in May from a bunch of high-profile angels, of $12 million total.

They include LinkedIn’s Reid Hoffman, former AOL head Steve Case, SoftTech VC Jeff Clavier, entrepreneur Mark Pincus, former Goldman Sachs analyst Michael Parekh, entrepreneur Ariel Poler, investor Ron Conway, FON founder Martin Varsavsky and an investment group called Atomico founded by Skype founders Niklas Zennström and Janus Friis. Tech bloggers Jeff Pulver, Michael Arrington and Dan Gillmor have also invested.

Now, Le Meur is trying to stretch his dollars in the economic downturn, spurred by venture capitalists who have been pressing entrepreneurs like him to do so.

“If I can’t make this work in three years it will be a failure,” Mr. Le Meur said to the Times. “If I can and I get through this, it will be much stronger.”

In other words, what doesn’t kill us …

C’est la vie in Silicon Valley!

But in more bon-vivant times, back in February, I did a video post on my happier visit to Seesmic’s San Francisco HQ.

(Note: Many in the video are no longer at Seesmic and neither are the shows discussed, as well as the now-defunct Web 2.0 sentiments about growth without revenue.)

Here’s the video:

Image Credit: Jim Wilson/New York Times

As the economy continues its very drastic downward slide–part of a binge and purge cycle that is almost classic in its psychology–it is, of course, no surprise to see Web 2.0 finally wise up.

While the quarter-dropping-in-the-slot was a bit slow, I think no one now doubts the impact of the tech and Internet business, going forward, from large companies to small start-ups, and all the rest of the ecosystem that relies on the virtuous circle of digital life.

Much has been made here and all over the blogosphere about various prescriptions to hunker down by venture capitalists and plans by companies to cut costs in this downturn.

That includes the realization that, as one Web exec wrote me yesterday, “no more eyeballs=business.”

Of course, this change in tone is a good thing and much needed, given how frothy things had become in Silicon Valley over the last two years.

While the excess was by no means anything like the last bubble–where inane start-ups actually had the audacity to IPO and, thereby, essentially take cynical and sometimes criminal advantage of an ignorant investing public–the maxim of Web 2.0 that basics like revenues or positive cash flow do not matter compared to growth has been a dangerous one.

And though growth is key too, part of an investment and belief in the future of important trends like social networking and the ubiquity of online advertising, the go-go strategy had taken too much of the attention of entrepreneurs.

And while the crash is certainly not due to that focus, and tech is indeed getting unfairly hurt, given how healthy much of the sector is, Silicon Valley needed an attitude adjustment.

In other words, while the recent excess is not the culprit, its departure is a very good thing.

The problem is, that does not matter at all, given the situation and where it is headed.

And where is that?

Onward, of course, although maybe not upward for a while.

In what is a typical shift in the zeitgeist this past week, TechCrunch’s Michael Arrington penned an interesting rumination today about what he calls the “ignoble but much needed end to Web 2.0.”

Like me, he references the dopey lip-synching video made by a bunch of Web 2.0 folks while on a vacation, which will surely become a classic example of how profoundly out-of-touch and egregiously silly their mindset has become.

Arrington writes:

“Goodbye, Web 2.0. I hope I never have to type those words again. Now can we please get back to work? There’s still a ton left to do before we get to Matrix-style virtual reality, the Singularity, and mobile phones with batteries that last a whole day.”

Although it might feel like it, I think calling it an “end” is probably too dramatic for what is happening now.

But I would have to agree wholeheartedly that moving on to what really matters is perhaps the silver lining in this decidedly difficult time.