If you think Twitter's 140-character limit doesn't go far enough to restrict users when it comes to nanoblogging, you'll be glad to know there's Adocu. Adocu is a nanoblogging platform with a one-word limit for each post, which "keeps it short and simple," but also makes it tricky to say anything meaningful without typingyourmessageoutlikethis, forming one long word.

With Twitter experiencing stability issues, we guess the proliferation of new nanoblogging platforms are waiting hungrily for everyone who's threatened to quit Twitter to put their money where their mouths are and do it. We're not ruling out the possibility of a Twitter killer, but Adocu is probably not it. They're working on buying up an SMS shortcode, but for now they lack the all-important text-message updating feature that helped Twitter become so prevalent. It's not that Adocu doesn't do what it's supposed to do, it's just that even if it had all of Twitter's features, plus stability, it would be hard to sell users on a one-word blogging system.