Want to search for social media content, but don't want to stray too far from Google? Then try the Google Social Media search tool, which by the way isn't by Google. It's from a site called Social Searcher, which is another social media search engine, but they've put together this really nice tool which uses Google to search for content in:
Facebook, Twitter, G+, Instagram, LinkedIn and Pinterest.
You can choose any combination of searches or all of them if you prefer. You get a nice column set of results coming back to you.