Twitter is a huge market place, but you have to take time to build a follower lists, 200-300 followers will make you nothing----by planning a head to build 100+ accounts with 10000+ followers then you have a market,,cant be done--believe me it can--takes time and effort,,,thier are thousands of facebook users on twitter looking for you to add to thier facebook accs.
Forums are great for getting more followers, facebook has groups dedicated to twitter.
Twitter aint going to disappear, it will only get bigger,,check the web, it is now being classed as the new google-----
I have posted a few articles about how to use twitter, search this forum...
I am building lists at the moment and will not push for any sales until ive reached suitable numbers of followers, each account has a niche and i feed news tweets to them to build up relationships with my followers...
Take the time,,,at present if you get 200+ new followers per account a day your doing well....
I have 100+ accounts getting 100 a day so thats 10000+ a day over all the accounts on a good day...
Let the spammers join your list, then once your list reaches 2000 remove them....
Use hummingbird, livelys adder, use all the free tools availble and thiers loads of them..
Me im waiting till i hit 1000000 plus before i even think about posting sales on any of my accounts...
only 900000 to go
Enjoy twitter for what it is,,,social network with millions of would be buyers,,,