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Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805448) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805448) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805448) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805449) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805449) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805449) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805449) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805450) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135

Warning: Duplicate entry '52558618' for key 1 query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:173:\"preg_match() [<a href=\'function.preg-match\'>function.preg-match</a>]: Compilation failed: disallowed Unicode code point (&gt;= 0xd800 &amp;&amp; &lt;= 0xdfff) at offset 1811\";s:5:\"%file\";s:78:\"/usr/local/drupal/prod/video/sites/all/modules/ctools/includes/cleanstring.inc\";s:5:\"%line\";i:157;}', 3, '', 'http://www7.gsb.columbia.edu/video/topics/mediatechnology?page=3', '', '128.59.84.218', 1416805450) in /usr/local/drupal/prod/itg-core/includes/database.mysql.inc on line 135
Media and Technology | Columbia Business School Video

Internet entrepreneur Kevin Ryan, founder of several New York-based businesses—including GILT, Business Insider, and MongoDB—explains how he helped build DoubleClick into a multi-billion dollar global industry leader.

Ryan's October 28 talk was part of #CBSStartups Week. Read more: https://www8.gsb.columbia.edu/entrepreneurship/newsn/3246/join-us-for-cb...

#CBSStartups Week: Kevin Ryan

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