There’s no end to the various charities, organizations, and groups all doing something in the name of goodwill. You can literally subscribe to a million different causes from saving polar bears to freeing Mumia to getting rid of the Federal Reserve. There will always be a cause to champion. And lately, being charitable is in vogue. We all know the most popular causes are often the ones that come celebrity endorsed and neatly packaged by slick PR gurus. Feel like going green? Thanks Al. Save Africa? Go Bono (and Brangelina)! Think change is good? Vote for Barack. Now, the actress Jessica Biel has a cause close to her heart. This one comes packaged in Web 2.0 Startup form and is aptly named, Make the Difference Network. Its aim, as you may have guessed, is to make a difference. It does this by providing a platform for nonprofits and organizations to reach out to you, the kind web user, so that you can help, volunteer or donate. Think of it as a cause-oriented social network. You can search for causes by community, celebrity, business or nonprofits. Simply sign up to get started.