ZYGOtweet

ZygoTweet is another service that will offer Twitter via SMS in the UK, like tweetSMS plans to do. The service will be charge users 4-5 pence per message.

Tweetbots

Tweetbots is a service that automatically re-sends people’s tweets automatically (re-tweets). The tagline reads “stalk, track, auto-follow, re-tweet, feed-tweet.” Whoa! Sounds spammy!

Tweet Your Trades

Covestor is a portfolio sharing service for self-investors. The site has now integrated Twitter with their service. You can send live trade notifications directly to your Twitter account and when you make a trade, you can post that to Twitter, too.

Another service for tracking stocks with Twitter is StockTwits, which tracks different stocks by Ticker code and Sector. (via Tweetcrunch)

Newspapers That Twitter

This site is keeping track of all the newspapers that Twitter. Lots and lots of them do, apparently. Too much info for here, so go check it out: Newspapers That Twitter

Also, an entry on the Twitter blog  recently pointed out all the New York Times writers using Twitter.

TwitterSafe

TwitterSafe is your one-click backup and restoration vault for Twitter. According to the site’s Why Us page:

Once upon a time, not so long ago, we were just a bunch of helpless little Twits. Working hard to build relationships in the Twitterverse… when one day it happened… ‘Black Tweetsday’ the day Twitter commited ‘Mass Twiticide’… the day we had our ‘Tweeters’ chopped off! Oh the horror! Oh the Pain!

We were lucky little Twit’s however… and as we Tweeted loudly and in masses, the T- Bots & Twitter Gods restored peace in Twitterville. The followers and the following were all returned to the natural order of the Twitterverse, and all of us little Twits went back to our Tweeting and Twittering away.

So hard we worked to build our Following and so helpless we felt, and although we have had our Followers Restored…our faith in the system has waivered, and a thought will always lurk, a doubt, and a fear, in the back of our Twittering little minds. The question, can it happen again? Will it happen again? What can we do to prevent such a collapse in our Utopic little Twitciety again?

Green Twitter List

On the site (Anti) Social Development, Kim has been keeping track all the “green” twitterers as well as an OPML file with all their blog feeds. Too much to reproduce here, just go check it out: The Green Twitter List

tweetSMS

A new service by a UK web development company called tweetSMS will help Twitter users send and receive tweets via text once again. On August 14th, 2008, Twitter stopped supporting SMS outside of the US, Canada, or India. TweetSMS will now provide the service for a small fee (unknown at this time). The beta will begin shortly, so register here to get on the list. Initially, the service will be available in the UK only. Later on, they hope to offer it internationally.

Twitly

Twitly is a service that lets you create groups on Twitter. In order to use it you have to sign up for an account with Twitly and sign into Twitter. You can then create a Twitter group by entering in a name for the group and adding your Twitter friends to it.

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Pikter

Pikter is a simple service that enables users to share photos via Twitter and/or Jaiku. Users are given a special email address to which they can send photos to from their phone or email client.
The service is free. However, there will be limited ads placed throughout the site.