I am interest to have an advertising on my twitter account to promote my business?

[?]

create a page in twitter for your business. and invite your friends to tweet and share it with their friends. post frequent images and videos relevant to your business. answer all the queries posted by them as soon as possible.
Advertising only on twitter is not enough. try to advertise your products on several social networking sites. and post blogs and articles in top blogging sites with your business link. then participate in forums and try to answer many questions that you know. if you feel difficult with it then make use of a b2b portal bizbilla.com it has many opportunities to expose your business. just visit that portal, then you will realize