Market clearability

COMBINENET, INC.

from ADVANCED TECHNOLOGY VENTURES VI, L.P., ADVANCED TECHNOLOGY VENTURES VII (B), L.P., ADVANCED TECHNOLOGY VENTURES VII (C), L.P., ADVANCED TECHNOLOGY VENTURES VII, L.P., APEX INVESTMENT FUND V, L.P., ATV ENTREPRENEURS VI, L.P., ATV ENTREPRENEURS VII, L.P., ECC PARTNERS, L.P., C/O U.S. SMALL BUSINESS ADMINISTRATION, RECEIVER FOR ECC PARTNERS, L.P., REVOLUTION CAPITAL, LLC, UPMC

RELEASE OF SECURITY INTEREST Recorded 2010-06-07

ADVANCED TECHNOLOGY VENTURES VII, L.P., ADVANCED TECHNOLOGY VENTURES VII (B), L.P., ADVANCED TECHNOLOGY VENTURES VII (C), L.P., ATV ENTREPRENEURS VII, L.P., ADVANCED TECHNOLOGY VENTURES VI, L.P., ATV ENTREPRENEURS VI, L.P., APEX INVESTMENT FUND V, L.P., UPMC, ECC PARTNERS, L.P., REVOLUTION CAPITAL, LLC

from COMBINENET, INC.

SECURITY AGREEMENT Recorded 2010-01-20

THE ADVISORY BOARD COMPANY

from COMBINENET, INC.

SECURITY AGREEMENT Recorded 2009-05-28

COMBINENET, INC.

from SURI, SUBHASH, SANDHOLM, TUOMAS

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded 2002-06-06