In its third reincarnation since its debute in 1996 and redesign in 1998, web site Kvetch now harnesses the time-wasting powers of Twitter to call a farshtinken tokhis leker a schmuck behind their back. Users have to follow the service's account on Twitter in order to send it direct messages, which are then reposted at kvetch.com without any personal information. Granted, it's still "mostly" anonymous, but you will be listed on Twitter alongside other Kvetch users. Warning: Reading the disembodied complaints of others is strangely compelling, so indulge at your own risk. However, if you're verklempt with resentment and can't focus on that fehkahkta project your boss assigned, it could provide the emotional release you need.

Google's beloved web-based email client has always been ripe for third-party design customization (we've always been partial to the Gmail Redesigned skin in Better Gmail, for example), but now Gmail is officially riding the interface customization train by offering 30-some new themes to spice up your inbox. Keep reading for a screenshot tour of the cool new offerings.

Ninja

Graffiti

Planets

Candy

Shiny

Mountains

Terminal

You can check out some of the other new options in the preview grid below.

Unfortunately I still don't see the Themes tab in my Gmail settings, but Google is an expert of the slow rollout, so we can all expect them sometime in the next few days. I'm partial to the ascii/Terminal theme, though it's probably a touch on the impractical side. Other than that, a lot of the offerings actually look really nice—especially compared with some of the lame duck skins Google offers in iGoogle. Let's hear which themes you like best—and whether or not they're actually enabled in your accounts yet—in the comments. Thanks Mark!

If you're a power searcher, or other people think you are, and you're getting tired of constant requests for answers to questions that a quick Google search would provide, try Let me google that for you. Enter a search term, click the Google Search button, and a link appears that you can copy, paste and send to your friend. When they click the link, an animation displays the complicated process of searching Google for information, and then directs the user to the actual search results page from Google. Snarky? Yes. However, the time the user is forced to study the search term you used, they might pick up a trick or two in keyword syntax, search operators, literal strings and the like. After all, give a man an answer, and he'll come back tomorrow asking for more. Teach a man to search Google, and you'll have to offer tech support when he ends up downloading malware while cruising shadier purveyors of adult entertainment and file sharing software.

Google Sync for BlackBerry updated today, adding support for bi-directional contact sync between your BlackBerry and your Gmail contacts (in addition to the existing calendar sync, which I believe still only supports one-way sync). While you're doing your Google sync dance, check out how to sync Google Calendar with any desktop calendar.

Mac OS X only: Free, open-source application Vocito puts Google's one-phone-number-to-rule-them-all application GrandCentral on your desktop, integrating directly with your Address Book contacts. The most obvious way to place a call once you launch Vocito and enter your GrandCentral login is to click the new menu bar item, search for the contact you want to call, and place your call—but it's by no means the only way. Beyond Address Book integration, Vocito also works with Quicksilver (awesome), Automator, and AppleScript. We haven't seen a lot of movement from GrandCentral since Google acquired it last year, so it's exciting to see even a little action from them. Vocito is a free download, Mac OS X only.

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