| Upgrades & Downgrades History | |
| UPGRADES & DOWNGRADES HISTORY | |
| Date | Research Firm | Action | From | To | | 10-Sep-09 | Wedbush Morgan | Initiated | | Outperform | | 11-Aug-09 | Piper Jaffray | Upgrade | Underweight | Neutral | | 6-Jan-09 | Merriman Curhan Ford | Initiated | | Neutral | | 8-Dec-08 | Wachovia | Downgrade | Outperform | Mkt Perform | | 11-Sep-08 | Piper Jaffray | Initiated | | Neutral | | 10-Jul-08 | Wachovia | Initiated | | Outperform | | 15-Apr-08 | Deutsche Securities | Initiated | | Hold | | 20-Dec-07 | Dougherty & Company | Initiated | | Neutral | | 8-Aug-07 | Nollenberger Capital | Downgrade | Buy | Neutral | | 17-Dec-04 | Oppenheimer | Downgrade | Neutral | Sell | | 16-Jul-04 | Roth Capital | Downgrade | Strong Buy | Neutral | | 10-Jun-04 | Oppenheimer | Initiated | | Neutral | | 4-Feb-04 | Roth Capital | Initiated | | Strong Buy | | 16-Jul-03 | AG Edwards | Downgrade | Buy | Hold | | 23-Jan-03 | Adams Harkness | Downgrade | Buy | Mkt Perform | | 31-Jul-02 | Adams Harkness | Initiated | | Buy | | 8-Apr-02 | Prudential | Upgrade | Sell | Hold | | 23-May-01 | Prudential | Downgrade | Strong Buy | Hold | | 1-Feb-01 | Banc of America Sec | Initiated | | Buy | | 16-Nov-00 | Prudential | Initiated | | Strong Buy | | 10-Aug-00 | AG Edwards | Initiated | | Accumulate | | 23-May-00 | Thomas Weisel | Initiated | | Strong Buy | | 14-Sep-98 | BB Rbrtsn Stphns | Initiated | | Buy | | 24-Aug-98 | Volpe Brown | Initiated | | Strong Buy |
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