1 million tweet map - Live twitter geo location map that geolocates the tweet for the last 6 hrs
Conweets - Shows peoples historic conversation on twitter and connectivity
Checkusername - Searches 160+ social networks at once
Echosec - Excellent geo tool for geofencing and locating uploads from Twitter, Fickr and Instragram
Geochirp - Localised Tweets search
Geofeedia - Set a geo fence to monitor social networking in that area
Icerocket - Search engine for geo Tweets and Facebook posts
Intel Techniques - Custom Facebook tools
Lazqa - Search for an area and see the tweets in that area
Linkedin - Business professionals search engine - ALERT!- the profile sees youve searched them
Namechk - See where a username / tag exists and lists other lesser known social network sites
Netbookcamp - Serach facebook accounts
Shodan - Lists the location of a server holding a persons profile
Snitch - Social network name search
Social searcher - Social media search engine
Socialmention - Search engine which indexes social uploads
Teachingprivacy - Search a Twitter or Instagram username to see where their tweet or post was sent from. It shows a 'heat map' where they do most of their tweeting. Their location option on their device must be on.
Topsy.com - Social network analyser and archived tweets
Tweet tunnel - Several Twitter tools
Tweetarchivist - Serach for tweets that have been archived and no longer on the twitter pages
Tweetdeck - Twitter search
Username - Serch for a username
Usersearch - Deep web search for usernames and hash tags
UVRX - Social network keyword searcher
Wheretweeting - Outline an area on a map to see the Tweets in that area