below are the above mention hint to boost your twitter account



twellow.com - Twitter Yellow Pages
justtweetit.com - dir
tweettop.com - dir and pop topics
tweeplerank.com - top recommended people by niches
tweetfind.com - dir and tools
tweetworks.com - groups and threaded discussions
twibs.com - business on Twitter search
twittgroups.com - groups, cities, search
govtwit.com - governments and officials
wefollow.com - dir
twitr.org - dir
mytwitterdirectory.com - dir, advanced search and folders
blacktwitters.com - African American Twitter Celebs
campustweet.com - American Uni campus dir
socialmoms.com - moms dir
twibes.com - groups
twibbon.com - cause ribbons on Twitter photos (not to be neglected - find people that are passionate about your product and you got yourself a quality lead)
tweetwally.com - tracker (hashtag/username/keyword)
grouptweet.com - groups (DM to group account and then to group members)
coupontweet.com - coupon tweet search
wellnesstweets.com - seems to be wellness tweet search only
twiangulate.com - advanced follower list tool. "Twiangulate discovers hidden tweeters, friends of friends (or friends of enemies), micro-influentials who only insiders follow, or sometimes just friends you haven't yet seen tweeting." - powerful enough for ya?
tweepsearch.com - profile search
favstar.fm - fav tweet
crowdeye.com - real time search engine (offline ATM)

thanks