One of the key factors I look at when deciding to follow someone on twitter is how often that user tweets.  If I’m not careful, it’s easy to add someone who will overwhelm my stream.  To that end I created an extension for Chrome that adds an info box (next to the other info items, such as follower count, following count, etc) with the rate at which they post new tweets.  With this add on it’s now very easy to see if someone is a “once per day” user, once per week, or “28.2 tweets per day” type.

It won’t change your life, but it only takes about 5 seconds to install and you can forget it after that.

download (Chrome Store): http://bit.ly/tweetsperday

source: https://github.com/trg/Tweets-Per-Day

Matt Warren has come up with a very elegant script to automatically tweet back to anyone who mentions certain keywords.  Check it out here.