One of the elements that makes social media so powerful is discovery, a topic we have covered before at Arkovi. In fact when we define social media archiving, it includes monitoring, market intelligence (discovery & research) and compliance (backup, record-keeping, etc.). StumbleUpon is one of those great discovery tools that enables you to both share your favorite content (yours or others) while also generating new recommendations for your consideration (stumbling as they call it) based on topics you define.
One of the powerful enablers in using social media is the ability to create content and distribute to multiple destinations (and audiences) with a mouse-click. Posterous is certainly a leader in this area – providing a powerful publishing platform (for free) that serves as a syndicator of your content. The service can host your blog, post to your blog and even send updates to Facebook, Flickr, Picasa and Twitter linking to your blog posts (Our team’s favorite feature is the email to blog post feature). This automation can dramatically simplify your use of social media to further your content and brand message (and save quite a bit of time!).