New York—BtoB has released a new e-book profiling 50 successful marketing campaigns in email, lead generation, social media and other areas.

“Top 50 Marketing Case Studies of 2012,” available for download from BtoB's Intelligence Center, is a 98-page compilation of in-depth success stories, including planning, processes and ROI from such leading b2b companies as American Express Co., AT&T Inc., Canon Inc., IBM Corp. and Motorola Solutions.

“It's said that the best way to learn is through experience, and we agree,” said Bob Felsenthal, publisher of BtoB and BtoBonline.com. “Each of these 50 case studies showcases the experience of others, providing readers with the crucial information they need to plan and execute their own successful campaigns.”

In addition to the case studies on lead-gen, social media and email best practices, “Top 50 Marketing Case Studies of 2012" also contains examinations of campaigns in direct, event and integrated marketing, as well as video campaigns.

There's also a bonus section, “10 Great B-to-B Websites,” a compilation of BtoB's selections of outstanding b2b websites as represented by such companies as American Express, Carnival Cruise Lines, Citrix Systems and Siemens.

“Top 50 Marketing Case Studies of 2012,” available as a PDF download, is priced at $29.95.