| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | ROYCE & ASSOCIATES, LLC | 2,962,955 | 5.50 | $6,903,685 | 30-Sep-09 | | ESSEX INVESTMENT MANAGEMENT CO INC | 1,881,445 | 3.50 | $4,383,766 | 30-Sep-09 | | DIALECTIC CAPITAL MANAGEMENT, LLC | 1,241,800 | 2.31 | $2,893,394 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,156,768 | 2.15 | $2,695,269 | 30-Sep-09 | | NEUBERGER BERMAN GROUP, LLC | 1,149,628 | 2.14 | $2,678,633 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 1,071,500 | 1.99 | $2,496,595 | 30-Sep-09 | | S SQUARED TECHNOLOGY CORP. | 1,027,700 | 1.91 | $2,394,541 | 30-Sep-09 | | Ameriprise Financial, Inc. | 928,755 | 1.73 | $2,163,999 | 30-Sep-09 | | CROSSLINK CAPITAL. INC. | 824,600 | 1.53 | $1,921,318 | 30-Sep-09 | | GALLEON MANAGEMENT L.P. | 659,305 | 1.22 | $1,536,180 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ROYCE OPPORTUNITY FUND | 1,458,921 | 2.71 | $2,334,273 | 30-Jun-09 | | Managers AMG Funds-Essex Small/Micro Cap Growth Fund | 536,886 | 1.00 | $918,075 | 31-Aug-09 | | ROYCE MICRO-CAP FUND | 486,700 | .90 | $778,720 | 30-Jun-09 | | Principal Small Cap Growth Fd II | 288,005 | .54 | $671,051 | 30-Sep-09 | | DFA U.S. SMALL CAP SERIES | 245,090 | .46 | $431,358 | 31-Jul-09 | | DFA U.S. SMALL CAP VALUE SERIES | 199,994 | .37 | $351,989 | 31-Jul-09 | | Fidelity Select Portfolios-Select Communications Equipment | 183,615 | .34 | $317,653 | 31-Oct-09 | | DFA Tax Managed U.S. Targeted Value Port | 159,714 | .30 | $281,096 | 31-Jul-09 | | SEI INSTITUTIONAL MANAGED TR-SMALL CAP VALUE FUND | 116,600 | .22 | $186,560 | 30-Jun-09 | | SEI INSTITUTIONAL INVESTMENT TR-SMALL CAP FUND | 92,400 | .17 | $158,004 | 31-Aug-09 |
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Value shown is computed using the security's price on the report date given.
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