It seems like the micro-blogging trend is heating up. Social-driven micro-blogging services like Twitter, Jaiku, Pownce etc., allow users to send small text-based posts via SMS, IM, email or a web form, to their profile page (think of it as a mini-blog or scrapbook). Social micro-blogging is centered around sharing messages, files, events, and links with already established friends. This concept binds together most existing tools like blogs, social networking, file-transfer, bookmarking etc.
By the way, if anyone needs an invite for Pownce (which is private until release) then drop me a message.