TweetBeep - sign up for alerts for when someone Tweets about you, your blog etc. Set up a search and TweetBeep will alert you of matches via email.

Auto-reload Twitter Greasemonkey - Greasemonkey script that will reload Twitter every minute.

TwitterFone - call in your Tweets. Currently in beta, but you can request an invite here.

twitsay - register your Twitter details and a phone number and call in a message to Twitter. Your messages will appear in your Twitter stream and on the twitsay public timeline.

TwitterBerry 0.6 - updated version - for those poor souls addicted to both Twitter and their BlackBerry. Now supports direct messages!

via @Paisano

Tweetshots - turns your Tweet into an embeddable screenshot. Click on the Tweet you want to turn into an image and copy the URL. Open Tweetshots in a different window/tab and then paste the URL in to the box that says “enter a bookmarklet name”. Drag the bookmarklet to your bookmarks/browser bar. Navigate back to your Tweet and click on the bookmarklet. You then get the option to copy the image or code to embed or post directly to your Tumblelog.*

via @twtooltrack

See the comment on this post for better instructions!

TweetWire - “grabs the freshest links posted to Twitter around the clock”. Using Tweetscan, Yahoo! Pipes and human filters. So far there are four categories of news: election 2008, celebrity, tech and sports.

Live Twitting - keep your conference/event Tweets together. Follow @livetwitting and use the following commands (direct message or reply can be used):

“d livetwitting ON Conf. Name # Session Title” - to start your conference Tweets

“d livetwitting PAUSE” - to pause and Tweet about other stuff

“d livetwitting RESUME” - er, to resume of course

“d livetwitting OFF” - for when it’s time to go home

More commands and examples are available here.

Your Tweets will be collected on one page, with RSS feed available.

autopostr - share your latest Flickr pics on Twitter. Just provide your Flickr and Twitter IDs and add # to the titles of the Flickr photos you want to share.

TweetFighters - attack fellow Twitterers. Sounds like Top Trumps but for Twitter. Still “extremely alpha”, follow @tweetfight to join the waiting list.