If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Volunteers and Part-Time Contributors

The Khan Academy community would like to thank the following people who recently dedicated their time, energy, and expertise (in alphabetical order):

abarwale
Closed captioning.
abhishekmishra3
Closed captioning.
Kelkar Amol
Closed captioning.
antimatter15
New iPad-friendly scratchpad.
Maneesh Arora
Website analytics, Facebook integration, user interface mockups.
Eric Berger
Multiple exercise modules.
blowingdandelions
Closed captioning.
Bill Bonner
Divisibility and scientific notation exercise modules, issue triage.
Greg Boyle
Discussion community Guardian.
Dean Brettle
Release management, exercise scratch pad, periodic exercise review, Facebook login, video viewing page.
Joey Chang
Exercise modules and upcoming iOS work.
Peter Collingridge
Discussion community Guardian.
Robert Conrad
Patch to warn students that the hint button resets streaks.
James Crook
Closed captioning.
Mikuláš Dite
Translation statistics graph.
Isaac Fingerson
Issue triage and discussion community Guardian.
gulickh
Closed captioning.
HamiDjoukouMi
Dutch translation of videos.
Karen Hubert
Closed captioning.
Wesley Johnson
Discussion community Guardian.
Vishal Kapur
Qbrary (not released).
Peter Kuperman
Volunteer outreach coordination.
KhanAcademyEnEspanol
Spanish translation of videos.
Michael Malione
Common Core standards research.
John Michelsen
Progress reports/charts, teacher tools, standalone server.
Srinivas Panguluri
Bug fixes and exercise module refactoring.
Purav Patel
Discussion community Guardian.
Omar Rizwan
General exercise framework improvements and tons of exercise modules covering topics in trigonometry, precalculus, and calculus, among others.
Christi Rockwell
Multiple exercise modules and issue triage, discussion community Guardian.
Jahanzeb Sherwani
Qbrary (not released).
Michael Steiner
Issue triage, forum management, and community moderation.
Ford Stewart
Issue triage, forum management, and community moderation.
Max Van Keuren
Closed captioning.
Harley Witt
Issue triage and video discussion moderation.

If you've recently helped out as a volunteer and we've accidentally left you off the above list, please let us know. If you want to volunteer, please see how to help.