1. You can be getting in touch with your peers and even strangers.
2. You can learn about new products.
3. You can be updated with current and breaking news.
4. You can enjoy someone's newly created website.
5. You can write about anything by using your right of speech.
6. You can send your message to the whole world, via twitter where millions of people can hear your message.
7. Twitter is a great place for your self-promotion.
8. You can kill your some time, and at the same time you can make some money with this great site by promoting some goods or sevices.
9. People are using this great platform to find, connect and interact with minded people and celebrities.
10. You can find potential customers for your business or services.
11. You cannot only generate lead, but you can convert the lead into the productivity.
12. Many people use Twitter to drive massive traffic to their website or blog.
13. If you love to talk with strangers than Twitter is a great source for you.
14. Every public tweet is indexed by search engine like Google and MSN, hence it is a very good tool for SEO (Search Engine Optimization).
15. Customers can complain if they are not getting good services so that service providers can improve their customer services for the future.
16. If you want to broadcast your voice around the world then twitter is the best tool for you.
17. Celebrities use Twitter for satisfying and increasing their base of followers and fans.
18. You can express your opinion on various local and global issues.