Complex sentence: Previously, Tinsley was the CEO of GreatDomains.com, Inc. GreatDomains.com was responsible for facilitating large domain name sales through its secondary domain name marketplace, including Loans.com for $3 million, ForSaleByOwner.com for $835,000 and Drugs.com for $823,000.
Split into simpler sentences: Previously, Tinsley was the CEO of GreatDomains.com, Inc. where he oversaw the sales of large domain names through its secondary domain name marketplace. This included the of Loans.com for $3 million, ForSaleByOwner.com for $835,000, and Drugs.com for $823,000.