Attention, b-to-b marketers and agencies: Show us your best and most innovative social media marketing programs. Our editorial team will choose the best submissions and recognize them in the March 12 issue of BtoB and at an awards ceremony in San Francisco on March 20. We're currently accepting entries in the following categories: Best use of Facebook, Best use of Twitter, Best use of LinkedIn, Best use of mobile, Best viral video, Best corporate blog, Best closed community and Best social media integrated campaign (tech and nontech). Entries are due Jan. 23. Campaigns must have debuted in February 2011 or later; we will not consider campaigns entered last year. In addition, our readers will have the opportunity to vote online for their favorite entries from a tech and nontech company, and we'll reveal their People's Choice winners at the awards ceremony. Visit www.btobonline.com/socialmediaawards for more information.