Top 10 must use url shortening services online

Top 10 must use url shortening services online
Url shortening is a method where a long url or a link is shortened .This method is mainly used in social networking sites like twitter, friendfeed, indenti.ca.. etc.All the below sites are fast and free url shortening services and are rated as top 10 url shortening services.
1 . Bit.ly

2 . Goo.gl

3. Tinyurl.com

4. Is.gd

5. Doiop.com

6. Fwd4.me

7. Shortlinks

8. Simurl.com

9. Ow.ly

10. Fur.ly