Social networking are communities like Facebook, Twitter, LinkedIn and Google Plus. It's a way for groups of people to meet and stay in touch with each other, for personal and professional purposes. People can friend, follow or fan someone based on affiliation or interest. Another new site is Quora.com, which is a social question and answer site. Users can view by category and post questions or answers on virtually a business related topic.
Social media refers to sites like Youtube, Flicker or Tumblr where groups of users share media content such as video, audio or pictures (photos). There's also new sites like Spotify.com, which are social music sharing sites, where users can listen to mp3 files as well as with friends via Facebook.
Important Tip! It's important to keep a steady presence on Quora. Stick to your areas of expertise (categories and topics). Make sure you have a keyword rich descriptive bio about yourself and include back-links to relevant websites. All of these things help with credibility and bonding. In addition, Quora's pages are indexed by search engines and do appear and organic search results listing pages (SERPs). Than can expand your reach and visibility, which can lead to traffic to your website, which can then be parlayed into leads or sales.
Digg.com.com is one of my favorite content bookmarking sites. You can upload content 'snippets' or news nuggets. The site will also pull in any images and well as back-links appearing on the same page as your content. Content can be given a 'category' so that the right readers will find it. The more popular your content (number of 'diggs'), the more people in the community it gets exposed to. Viral marketing and traffic generation (to the source website in the 'digg') are typical outcomes from this website. Reddit.com is a similar site which allows users to upload a content excerpts (article, video, picture) and link to the full version. This is a great site to increase your market visibility and extend reach. It's also a powerful platform to drive website traffic.