Original sentence: Just over a year after the purchase, Sullivan announced his resignation from guiding the series on August 29, 2006 after a contract dispute but later agreed to run two further shows in the US and speak at a third during 2007.On June 7, 2007, Kevin Ryan was named as vice president and global content director for the series.The conference was created by Danny Sullivan, founder and former lead editor of Search Engine Watch.The first SES conference was on November, 18 1999 in San Francisco, California and marked the first formal occasion that site owners had met with search engines
Edited sentence: Sullivan had apparently resigned from SES, but later came to an agreement with the the owners, and will continue to help organize SES through 2007.The conference was created by one of the industry's leading experts, Danny Sullivan, founder and lead editor of Search Engine Watch (until November, 30 2006).The first SES conference was on November, 18 1999 in San Francisco, California