(1) Free cash flow, which we define as cash provided by (used for) operating activities less capital expenditures, is considered a non-GAAP financial measure.  This measure is not equivalent to any measure required to be reported under U.S. generally accepted accounting principles (GAAP) and may not be comparable to similarly titled  measures reported by other companies. Cash provided by (used for) $(5,183)  $16,542  $29,705  $32,862 $48,445  $98,245  $111,037  $149,339  $101,256 $ 123,416 Capital expenditures ($000) (5,932) (5,989) (8,607) (7,730) (7,451) (4,722) (11,346) (48,519) (12,372) (14,771) Free cash flow 1  ($000)  $(11,115) $10,553 $21,098 $25,132 $40,994 $93,523 $99,691 $100,820 $88,884 108,645 % change  NMF  NMF  99.9%  19.1% 63.1%  128.1%  6.6%  1.1%  (11.8%) 22.2% operating activities ($000) Financial Highlights 01 02 03 04 05 06 07 08 09 10 Free Cash Flow 1  ($000) $(11,115) $10,553 $21,098 $25,132 $40,994 $93,523 $99,691 $100,820 $88,884 $108,645 Cash, Cash Equivalents, and Investments ($000) $365,416 $47,650 $76,158 $95,463 $153,190 $258,588 $297,577 $342,553 $163,751 $64,796 Revenue ($000) $91,230 $109,619 $139,496 $179,658 $227,114 $315,175 $435,107 $502,457 $478,996 $555,351 Operating Income (Loss) ($000) $(16,391) $(8,340) $(10,754) $17,735 $46,480 $77,527 $117,021 $138,876 $124,673 $121,059