Exactly how is the introduction of vanity URLs on Facebook going to go?

At 9:01 p.m. PDT on Friday, the giant Silicon Valley-based social-networking site will allow its 200 million members to log in and claim a friendlier username for part of their URLs instead of the long string of gibberish that is now there.

That a lot of sites like Twitter, LinkedIn and others already allow you to do this is not really the point.

But, because it is about people’s names and because it is certain to be chaotic in its execution, I think we can pretty much slap the moniker “URLgate” on this one and just call it a night.

Nonetheless, in an email tonight inviting media to an open house to see its new HQ building in Palo Alto, Calif., the PR team at Facebook–which often gets into hot water over various public snafus that arise at the young company with regularity–is mightily trying to make nice with journalists to perhaps head off any bloggish bellyaching.

They wrote: “We wanted to let you know that we decided to reserve usernames for the key journalists and outlets we work with. Look out for an email from someone on the communications team with more details.”

Firestorm of disgruntlement from those who did not make the list sure to follow? Of course!

In any case, my top preferences?

Http://facebook.com/internalfacebookmemostoboomtownstat

Http://facebook.com/findmeontwitter@karaswisher

And, if you want to read a very funny take on the gathering Facebook username–yes, FU!–storm, read Anil Dash’s great spoof post on the issue.

My favorite fake prediction Dash makes is one that you just know is going to come true:

“In response to the growing buzz on Techmeme about ‘The Facebook Debacle,’ [Facebook CEO and founder] Mark Zuckerberg posts on Facebook’s blog with the news that the company has created the Facebook Username Dispute Resolution Community.”

[Photo of the vanity license plate above, courtesy of COOLPL8Z.com.]

Last week, I wrote about October Tech Blogger Challenge on the the charity site called DonorsChoose.org, which funds classroom projects in high-need public schools, using the Web to match teacher project requests with donors.

I picked tech projects in both San Francisco (where I live) and Washington, D.C. (where Walt Mossberg lives) and have set a goal of $25,000. So far, our AllThingsD page on the DonorsChoose site (and you can also access it using the nifty fund-raising thermometer on the left rail of the main BoomTown page here) has raised $1,928 from seven donors.

That puts us fourth, just behind Endgadget ($2,830 from 22), TechCrunch ($2,875 from eight) and the putting-us-to-shame Fred Wilson ($9,283 from 32).

We want to thank all who have given, but we’re asking for more from more now both to help the kids and also for our more nefarious purposes, which require sheer numbers.

That’s due to BoomTown’s dastardly master plan of winning the award Yahoo is giving. The company is sponsoring an award for the bloggers who inspire the most readers to give and the winner will get a free lunch with CEO Jerry Yang.

Here on the Tech Leaderboard in terms of donor numbers, we are fifth (Anil Dash drops in with 14). But Fred Wilson is still leading by a mile!

Like Yang needs to have lunch with another VC!

So here is our video plea to stop this unfortunate event (and where all that will be discussed is widget valuations and real estate):