Heat: Heat Index

Founded: 2010
Twitter: @WindhorstESPN, @WallaceNBA_ESPN
Main Contributor(s): Brian Windhorst, Michael Wallace, Kevin Arnovitz, Sebastian Martinez-Christensen

With the birth of the Big 3 came the birth of The Heat Index. Unlike any other blog on this list, The Heat Index is its own legitimate section on ESPN.com. Like ESPN's homepage, it has its own rotating content hub and headlines. It also features Brian Windhorst, who has basically been LeBron James' personal reporter since high school. With the full backing of the Worldwide Leader, it's hard to top.