Three-fourths of marketers are planning to increase their outreach to social media in 2010, while roughly half intend to up their efforts in each of the following: SEO, email marketing, and virtual events/environments, according to recent research by Unisfair.

Other survey findings:

* Lead generation and customer retention/engagement are the most critical objectives for marketers today, with 60% and 48% respectively ranking them as very important on a scale of one to five.
* 26% of marketers (the highest percentage for any one method), say LinkedIn is the social networking tool proven to add the most marketing value. Facebook came in a close second with 23%.