What’s one of the ways you might attract a lot of attention online?

Here’s one possible equation: Celebrity + Mom + Tips Galore.

That’s the formula behind a new site relaunching today called Modern Mom, which is backed by “Dancing With the Stars” winner Brooke Burke and partner Lisa Rosenblatt, wading into what the pair hopes will be a lucrative market.

In an unusual twist, they have bought an existing site, redesigned it and then turbocharged it using both original content and stuff pulled from Demand Media (which was founded by Rosenblatt’s husband, Richard Rosenblatt).

It’s an interesting effort to watch in online publishing, to see if the pair can attract both an audience and advertisers without a big brand name in the mother space and by leveraging Burke’s online and offline popularity.

She now has, for example, 562,522 followers on Twitter alone, a huge fan group on Facebook and is an active social networker.

Whether that can be turned into a real business is a good question.

“I think I am passionate about this and want it to be organic,” said Burke, who noted that she and Rosenblatt have seven kids between them. “There are a lot of places for moms to go online, but they tend to cut up the experience, while we’re focusing on information and tools from pregnancy to the teen space, since being a mother does not stop at any one point.”

Rosenblatt, who said that the effort has been backed by several million dollars in angel investment, added that the key was trying not to overwhelm readers with content that was not relevant.

“We wanted to be a place for people to feel involved easily, so they could feel comfortable,” she said. “We’re the audience for what we are offering, so we think we know what people want.”

That means, no surprise, nothing too heavy–with lots of tips, buying suggestions, health and beauty, food and home, videos, blogs, as well as an area focused on celeb parents, called Mommywood.

Of all the evergreens online, celebs are almost always a hit (witness the big wet kiss the New York Times recently bestowed on Wonderwall, which BoomTown wrote about a while back), and so are sites aimed at mothers.

Some of the many include BabyCenter, iVillage, Momlogic and Mommy Track’d, among others. Still, the packed category has a lot of potential, given it’s often an advertising-friendly environment.

Burke and Rosenblatt said Modern Mom already had such relationships and that they would be combined with Burke’s endorsements and her existing e-commerce business, called Baboosh Baby.

Here’s a screenshot of Modern Mom’s new homepage (click on it to make it larger), as well as a welcome video from Burke:

As BoomTown argued yesterday in a piece on the landscape of Yahoo if Microsoft completes its purchase of the Internet portal, Yahoo (YHOO) certainly knows how to make online content.

As we wrote: “For all its history, right down to today, even with all these dumb widgets competing for users’ attention, Yahoo continues to natively understand how to to entertain, inform and serve up their own and others content to consumers.”

Case in point, an attractive new site it launched today called Shine, which is aimed at women from their mid-20s to their mid-50s.

As you can see from the image below, it is a very well-done site, incorporating a lot of the good stuff in the same genre from around the Web.

Does it look a bit like the sassy properties of Sugar Inc.? Is it light and frothy like Glam Media? Does it feel a bit like DailyCandy, in its focus on the shopping as a sport? And, is it as helpful as iVillage (and does it even “borrow” a wiggly “i”)?

Yes indeedy to all!

Imitation is a form of flattery, I suppose, although Yahoo’s site feels fresher than any out there and it has an aspirational and hip feel that women will like, I think.

I’d call it an Eat-Pray-Love mood, with a lot of Oprah mixed in.

More importantly, it is clearly a good market for Yahoo’s advertisers, who all aim to reach this high-spending but underserved demographic online.

Yahoo is trying to reinvigorate its lackluster efforts here, as well as making plans to further drill down into related topics like parenting, sex, food and wellness that are present on the Shine site now.

While it looks a lot like a blog plus, Shine obviously has social written all over it and a wide range of communications tools will be easy to layer over the service.

It also is smart in its partnering with lots of media companies like Hearst and in pointing across the Web to give users a more comprehensive offering.

But can Yahoo compete in a very crowded field with such a late entrant? Probably. It recently put up a celebrity site called OMG, which has grabbed significant traffic quickly.

And while we honestly could care less if men look bad in skinny jeans (um, yes!), there is probably something on the very-full page of interest to everyone.

The Shine site has Brandon Holley as its editor-in-chief, but the effort in the arena is being helmed by Amy Iorio, who is the VP/GM of Yahoo’s Lifestyles unit. It all rolls up under Yahoo Media SVP Scott Moore.

While Yahoo PR will probably blah-blah too much about “starting points,” which is the latest buzz word from top brass, related to Shine, it should just hush up and realize Yahoo’s many owned-and-operated media conglomerations just need decent support and promotion to stay as strong as they are and to keep them as one of the bright spots at the company.

Here’s a screen shot of the site (click on the image once to make it appear on another page and then again to make it larger):