Here’s their website with a list. Like all magazines, their circulation is declining along with their ad pages.
When it comes to the design industry, their products are top notch.
http://www.mediapost.com/publications/?fa=Articles.showArticle&art_aid=114268
Changing Times: Online Trumps Newspapers
http://www.mediapost.com/publications/?fa=Articles.showArticle&art_aid=114358
Network Phenom: Little Broadcast Erosion
http://www.mediapost.com/publications/?fa=Articles.showArticle&art_aid=113899
TV, Agency Vets Leap To Fill Interactive TV Void