The list of awesome resources continues! Today, it’s all about Twitter…
Tweet Stats
Graph your Twitter Stats including tweets per hour, tweets per month, tweet timeline and reply statistics: http://tweetstats.com/.
Twitter Counter
Check out who has the most followers, increase your followers and track your stats: http://twittercounter.com.
FavStar.fm
Want to see the most favorited tweets across Twitter at any given time? Visit http://favstar.fm. You can also track your own tweets to see who is favoriting them as well as follow what your friends are favoriting.
TwitBlock
Find out how many of your followers are spammers: http://www.twitblock.org/.
Twitalyzer
An analytics and influence engine for Twitter: http://twitalyzer.com.
TweetPsych
Interested in knowing your psychological profile, based on the content of your latest 1,000 tweets? Try http://tweetpsych.com.
TweetFeel
An interesting tool that monitors positive and negative feelings in twitter conversations: http://www.tweetfeel.com/. For example, I used the word “poetry” in the search box. Out of 100 tweets, only 46 referred to the topic in positive terms. May be very helpful to target the right people in the course of your promotional endeavors!
Mr. Unfollowr
Looking for a tool which allows you to keep track of the people who unfollow you? Follow @unfollowr and you will receive a direct message notification.
Twit Cleaner
A neat tool that analyses the people you follow and finds the spammers and quitters. You know exactly who reads you or not. An eye-opener! http://thetwitcleaner.com/
Twhois
A whois tool that will give you detailed information about a certain user. You can get both professional data and social networks habits. http://twhois.net/
FYI there is one 1 dead link and another service which doesn't exist anymore.
Jose, thank you for letting me know! Would you tell me which services do not exist anymore?