The document discusses using social media like Digg and StumbleUpon to increase website traffic and reach new audiences. It provides statistics on how a post about endangered cats on Digg received over 48,000 views, engagements, and referrals in a single day. Similarly, it notes that the National Wildlife Federation has received over 100,000 page views from Digg and StumbleUpon in the past two months, with 95% of visitors being new. The key takeaway is that social media can help non-profits attract new audiences and drive traffic if content is optimized for the respective networks.