Given all the interest in social networking sites like Twitter and Tumblr these days, it can be overwhelming for PR pros to understand which sites are worth the investment.
Tumblr, for example, lets users create multimedia blogs simply by e-mailing to the site whatever it is they want to post, without needing any programming skills. As a type of microblog, Tumblr points to the growing ease at which consumers can share information about anything with friends, family, or the world, notes Blake ...