Social networks are all the rage right now, with Facebook topping 50 million members, MySpace heading toward 200 million and new social networks springing up all over the place. But how big of an opportunity is this for marketers? Lisa finds out in this episode in her interview with Paul Gillin: author of The New Influencers: A Marketer's Guide to the New Social Media and the new book, Secrets of Social Media Marketing (due in Fall/08).

Listen in as Lisa gets Paul's insights about:

- Why social networks are so popular right now?
- How can marketers take advantage of them?
- Are the procedures for engaging with people on social networks different from blogs? How so?
- It's a very crowded and chaotic market right now. What do you think the future holds for social networks?