If you want to start chronicling everywhere you've been and everything you've done, a new service called Diddit will make it a little easier.
Also: Search Cloudlet adds tag clouds to Twitter; StumbleUpon plans URL-shortening service; OpenFilm.com unveils ad revenue-sharing program; and MySpace launches annual Bracket Challenge.
As rumors escalate about Groupon's own potential acquisition, the company makes an acquisition that could improve its technology--which is currently very easy for competitors to replicate.
New search engine Goby forgoes one search box for three: you tell it what you want to do, where you want to do it, and when, and it does the rest.
The local reviews service is shaking things up by limiting how long user reviews can be, and providing tools that let you write a review in under a minute.