twtAd – allows you to make money online by adding sponsored tweets to your Twitter page. 
Once signed up, just one click will add a sponsored ad to your Twitter page and you will receive $$ every time someone clicks that link – it’s that simple and so easy to make extra money using twitter!
But the only thing that backs many guys from registering with twtAd.com is the fact that its registration process asks for twitter username and password even though it is no way affiliated or associated with twitter. 
Despite of this, twtAd now is the largest Social Conversation Ad Network advertising to an excess of 5 million Twitter users! So, with such high trusted members, you can be assured that your twitter information will never be seen or sold and it is just used to post the tweets to make you money.