Tinypaste - type in some text and it gives you a URL to host that text...handy for sites like Twitter when you need more than 140 characters...also see ChangeToLink, and ShortText.
Similar are edge feeds like, publi.sh, my.notify, FeedMarklet, ControlC...Texty is similar, but as a widget.
GeoGraffiti - like tagging or blogging physical objects, but this time with the use of audio. Also see Whereboutz, MyTago, Placeblogger, outside.in, Socialight, Rrove, and Flagr.
identi.ca - an OpenSource micro-blogging service built on Laconica, see more services.
12seconds.TV - a video based microblogging service...see more.
ScribbleLive - text or blog streaming service similar to CoveritLive (now with Qik)
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