AGREEMENT TO FILE JOINTLY AND STATEMENT APPOINTING DESIGNATED FILER
AND AUTHORIZED SIGNATORY
Each of the undersigned entities and individuals (collectively,
the "Reporting Persons") hereby authorizes and designates Benchmark Capital
Management Co. V, L.L.C. or such other person or entity as is designated in
writing by Xxxxxx X. Xxxxxxxx (the "Designated Filer") as the beneficial owner
to prepare and file on behalf of such Reporting Person individually, or jointly
together with the other Reporting Persons, any and all reports, notices,
communications and other documents (including, but not limited to, reports on
Schedule 13D, Schedule 13G, Form 3, Form 4 and Form 5) that such Reporting
Person may be required to file with the United States Securities and Exchange
Commission pursuant to the Securities Act of 1933, as amended (together with the
implementing regulations thereto, the "Act"), the Securities Exchange Act of
1934, as amended (together with the implementing regulations thereto, the
"Exchange Act") or any other state or federal agency (collectively, the
"Reports") with respect to the Reporting Person's ownership of, or transactions
in, securities of any entity whose securities are beneficially owned (directly
or indirectly) by such Reporting Person (collectively, the "Companies").
Each Reporting Person hereby further authorizes and designates
Xxxxxx X. Xxxxxxxx (the "Authorized Signatory") to execute and file on behalf of
such Reporting Person the Reports and to perform any and all other acts, which
in the opinion of the Designated Filer or Authorized Signatory may be necessary
or incidental to the performance of the foregoing powers herein granted.
The authority of the Designated Filer and the Authorized Signatory
under this Document with respect to each Reporting Person shall continue until
such Reporting Person is no longer required to file any Reports with respect to
the Reporting Person's ownership of, or transactions in, the securities of the
Companies, unless earlier revoked in writing. Each Reporting Person acknowledges
that the Designated Filer and the Authorized Signatory are not assuming any of
the Reporting Person's responsibilities to comply with the Act or the Exchange
Act.
March 24, 2011 BENCHMARK CAPITAL MANAGEMENT CO. V, L.L.C.,
a Delaware Limited Liability Company
By: /s/ Xxxxxx X. Xxxxxxxx
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Xxxxxx X. Xxxxxxxx, Managing Member
March 24, 2011 BENCHMARK CAPITAL PARTNERS V, L.P.,
a Delaware Limited Partnership
By: Benchmark Capital Management Co. V, L.L.C.,
a Delaware Limited Liability Company
Its General Partner
By: /s/ Xxxxxx X. Xxxxxxxx
------------------------------------------
Xxxxxx X. Xxxxxxxx, Managing Member
March 24, 2011 BENCHMARK FOUNDERS' FUND IV, L.P.,
a Delaware Limited Partnership
By: Benchmark Capital Management Co. V, L.L.C.,
a Delaware Limited Liability Company
Its General Partner
By: /s/ Xxxxxx X. Xxxxxxxx
------------------------------------------
Xxxxxx X. Xxxxxxxx, Managing Member
March 24, 2011 BENCHMARK FOUNDERS' FUND V-A, L.P.,
a Delaware Limited Partnership
By: Benchmark Capital Management Co. V, L.L.C.,
a Delaware Limited Liability Company
Its General Partner
By: /s/ Xxxxxx X. Xxxxxxxx
------------------------------------------
Xxxxxx X. Xxxxxxxx, Managing Member
March 24, 2011 BENCHMARK FOUNDERS' FUND V-B, L.P.,
a Delaware Limited Partnership
By: Benchmark Capital Management Co. IV, L.L.C.,
a Delaware Limited Liability Company
Its General Partner
By: /s/ Xxxxxx X. Xxxxxxxx
------------------------------------------
Xxxxxx X. Xxxxxxxx, Managing Member
March 24, 2011 By: /s/ Xxxxxxxxx Xxxxxxxxx
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Xxxxxxxxx Xxxxxxxxx
March 24, 2011 By: /s/ Xxxxx X. Xxxxxxxx
------------------------------------------
Xxxxx X. Xxxxxxxx
March 24, 2011 By: /s/ X. Xxxxxxx Xxxxxx
------------------------------------------
X. Xxxxxxx Xxxxxx
March 24, 2011 By: /s/ Xxxxx X. Xxxxxx
------------------------------------------
Xxxxx X. Xxxxxx
March 24, 2011 By: /s/ Xxxxxx X. Xxxxx
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Xxxxxx X. Xxxxx
March 24, 2011 By: /s/ Xxxxxx X. Xxxxxxxx
------------------------------------------
Xxxxxx X. Xxxxxxxx
March 24, 2011 By: /s/ Xxxxx X. Xxxxxx
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Xxxxx X. Xxxxxx
March 24, 2011 By: /s/ Xxxxxxxx X. Xxxxx
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Xxxxxxxx X. Xxxxx
