StarCityGames
StarCityGames is a Magic retailer based in Virginia. StarCityGames.com is one of the longest-running Magic the Gathering content sites on the Internet as well as one of the largest Magic dealers in the world.
On their site, they offer articles on competitive Magic and sell cards. Until recently, they were principally acknowledged for the amount of coverage they offered to the Vintage format. Although this coverage has not stopped, the site has now have hired several top-class players to write articles about other formats, like Standard, Block, Limited. Most high profile articles are locked behind a paywall requiring subscription fees for access, but are set to free access several days later
StarCityGames is often used as the defacto price guide for trading among Magic players in North America.
Open Series and Invitational
StarCityGames organizes a series of high level Magic events in North America to rival the Wizards of the Coast driven tournament scene. These tournaments fall into two categories: Any player may participate in the Open series, which is similar to the Grand Prix circuit, while good results in the Open series can earn the player a spot to participate in the Invitational series, which is StarCityGames equivalent of the Pro Tour. StarCityGames also organizes its own coverage of these tournaments and streams it over the internet.