It appears that the automated plugin isn’t quite working correctly, so here’s an authentically manual list:

Twittermaven: The Invisible Twitterman: Or how one man’s shameless self-promotion appears to be generating a similar response to Magpie adding adverts to tweets. “First Facebook, now Twitter. The Powerful Promoter, Matt Bacak, has taken himself to the top of the social media networks yet again, this time beating out 99.9% of the fastest growing site’s members”

Except it turns out that actually he hasn’t.

DownloadSquad: A few days later, a better notifier: Ding, It’s Up: A new service which will let you register a site which is currently down, and then Tweet you when it’s back online.

Wikinomics: Keep your plants healthy (or alive) with Twitter’s help: The perfect way for your spouse or partner to make sure they get back from a vacation to find all their beloved greenery hasn’t withered away. For $99 , a plant can send you Tweets such as “Water me, please!”.

Logic + Emotion: Can you retweet that:

'Can you retweet that?' by David Armano at Logic + Emotion