Business-to-business (B2B) companies are constantly searching for new client prospects that can benefit from their services. As a result, lead generation has proven one of the most critical and challenging B2B pursuits. BtoB Magazine surveyed US B2B marketers and found that in 2013, generating more leads remained their top challenge, cited by 60% of respondents. That was followed by the related challenge of successfully reaching their target audience. Read the rest at eMarketer.