USCIS has a new guide line for renewing and approving new H-1B visas. Many body shop consulting company will close the door once these guidelines are implemented properly. So be careful when you join the consulting company. Do your research first before you jump in.

http://www.uscis.gov/USCIS/Laws/Memoranda/2010/H1B%20Employer-Employee%20Memo010810.pdf