How many phone numbers do you have? Most likely close to a half dozen: Home. Cell. Office. Fax. Skype.

What about email addresses? Home. Work. Your old AOL one from '98. The one your girl doesn't know about.

Or better yet, how many social networking profiles do you have? Between Facebook, LinkedIn, MySpace, YouTube, flickr, Twitter and the other 5 or 6 minor ones you've been invited to join by people you barely know, you probably have double-digit profiles you're juggling.

With people moving and job-hopping so frequently lately, and business cards becoming out of date by the time the ink dries, it can get even harder to keep track of changes to phone numbers and emails, and get contacted by an old business colleague who has a new deal - or that chick you met six months ago at happy hour.

So, of course, there's a Web 2.0 solution. Give them your .tel address instead.

Last week, Telnic began selling the new top-level domain, .tel. Grab your name (jump on it, the "land rush" has already begun), and you can easily create a one-stop site that contains all of your info in one spot - like an online, permanent, updatable business card. (Check out the demo.)

Switch jobs, and you can update your work phone and email with a couple of clicks. Move, and simply enter your new mobile number. Anyone who has your .tel addy can always get your new info instantly. Which is why The New York Times is saying it “has the potential to become a phone book for the Internet.” (So to keep telemarketers and other people you don't want to have access to any or all of your info, you can add password protection.)

During the land rush, which runs until March 24, the cost of grabbing your .tel name starts at about $300 per year. (Which is a little spendy to grab HeywoodJablowme.tel as a gag.) After that, it drops to about $20 per year. But if you wait and you've got a common name (you listening John Smith?), you risk losing it to someone else. Along with that chick from happy hour.

www.telnic.com