Hashtags, people, conversations, topics, etc. Sometimes it can be a bit daunting to look for what you need on Twitter. However, having the right tools sure helps a lot. I've put together a list of 50+ sites that you can use to help you find who or what you're looking for. Enjoy

Keywords / Conversations

TweetGrid http://tweetgrid.com/ — A dashboard of Twitter searches
Twitter Troll http://www.twittertroll.com/ — Real time Twitter search engine
TweeTag http://tweetag.com/ — Searches Twitter tags & keywords
CrowdEye http://www.crowdeye.com/home.aspx — Search Twitter and see lots of info about the people behind the results
One Riot http://www.oneriot.com/ — Searches & displays more than just basic info about tweets & RT's
Daily RT http://www.dailyrt.com/ — Real Time search for the most popular RT'd items
TwitScoop http://www.twitscoop.com/ — Twitter client, a real-time search engine, & Real-time trends all in one without refreshing
Twendz http://twendz.waggeneredstrom.com/ — Search /  monitor conversations and sentiment
Twithority http://twithority.com/ — Results ordered by the “authority” (# of followers) a user has
TweetMeme http://tweetmeme.com/ — Hottest links / popular topics
Twopular http://twopular.com/ — Focused on Trends
HashTags http://hashtags.org/ — Focuses on Hashtags
Tweetzi http://tweetzi.com/ — real time search that you can pause
Monitter http://www.monitter.com/ — Real Tim search that lets you follow 3 keywords
TwitAlyzer http://www.twitalyzer.com/twitalyzer/poc/search.asp — Twitter search + Analytics
TweepSearch http://tweepsearch.com/ — sorst results by users
TweetScan http://tweetscan.com/index.php — Search recent topics and also backup your account
Twazzup http://www.twazzup.com/ — Real time search
Tweefind http://www.tweefind.com/ — enhanced Twitter search
Trendistic http://trendistic.com/ — track keywords and see trends
Twitter search & advanced Twitter search http://search.twitter.com/advanced — The original
Trendistic http://search.trendistic.com/ — Search twitter through time
Tweetzi http://tweetzi.com/ — Real time search and trends
Twitter Power Search http://twitterpowersearch.com/ — real time twitter search, current twitter top trends, multiple real time web searches, images, audio, video, etc

People

ExecTweets http://www.exectweets.com/ — Search for Execs on Twitter
TwitSeeker http://twitseeker.com/ — Search for users based on keywords
TwitDir http://twitdir.com/search_lite.php — Directory of Twitter users searchable by UN, name, descrition, location, etc
SerendipiTwitterous http://ouseful.open.ac.uk/serendipitwitterous/ — Search a user's recent tweets & tags
Tweepz http://www.tweepz.com/ — Twitter Search results with added info about the tweep
uTwitBook http://www.utwitbook.com/ — Search for users
Twellow http://www.twellow.com/ — Twitter yellow pages
Twibes http://www.twibes.com/ — Twitter useres and groups
WeFolllow http://wefollow.com/ — Twitter user search
JustTweetIt http://justtweetit.com/ — User search
TwitterHolic http://twitterholic.com/ — User search
LocaFollow http://www.locafollow.com/ — User search based around location
TwitProfiles www.twitprofiles.com/ — Find profiles and info quickly
TwipList http://www.twiplist.com/ - Twitter user directory
Quertweet http://www.quertweet.com/ — Tag based user directory
Twitr http://twitr.org/ — Tag and user based directory
TweetFind http://www.tweetfind.com/ — Directory of businesses and users

Twitter & More

WhosTalkin http://www.whostalkin.com/ — Social Search with Twitter option
ItPints http://itpints.com/ —  Another Social Search with Twitter option
BingTweets - http://bingtweets.com/ — Bing & Twitter together
Twiogle http://twiogle.com/ — Twitter / Google mashup that allows you to retweet Twitter items from their page, link to the search results, etc
Twingly http://www.twingly.com/microblogsearch — Search blogs & microblogs , including Twitter
Yauba http://www.yauba.com/ — Searches the web & twitter
Collecta http://collecta.com/ — Search social sites including Twitter
IceRocket http://www.icerocket.com/ — Social Search that includes Twitter
Topsy http://topsy.com/ — Social & Twitter ordered by RT's
Scoopler http://www.scoopler.com/ — Real Time search engine that also hits Twitter
Social Mention http://www.socialmention.com/ — social search that includes Twitter
Heapr http://www1.heapr.com/splash — Google / Twitter mashup

Are there any I missed? Anything that should be added? Let me know in the comments.

Thanks for reading,
Josh “Shua” Peters