I know that Google’s Social Search was released days ago and is now old news, but I wanted to use it for a bit before really commenting. Generally speaking it is an interesting idea to use your contacts from various social sites to drive search results. The idea they are exploring is that your social network contacts have more influence over you than a generalized application. For example, restaurant reviews from social network connections are probably more influential than a review on Yelp from someone that you do not know. This is definitely true from personal experience and I am sure there are various research studies that would back up this sentiment.
Mahendra at Skeptic Geek feels that this is only partially true. His post is in response to the various Facebook vs Google vs Twitter posts currently being discussed. Mahendra focuses on the fact that Google is probably going to lead the way because it pulls content from various networks as opposed to just Twitter or Facebook:
Real-Time Search will not be useful unless it is filtered by Social Relevancy.
Today, I follow several people on various social networks, who make up my “social circle”. The problem is not everyone uses the same social network for the same purpose. I follow some people on Google Reader as they share great content there, but I don’t follow them on Twitter, because they tweet mundane stuff I don’t care about. And vice versa.
This is an excellent point because many people do the same thing. Many people still work on the assumption that LinkedIn is your business network and Facebook is your friends network. The other social sites also have their strengths, like Digg with technical articles and anything Apple. So, having a search based purely on one site will likely not give you the results you are hoping for in all cases.
However, the same reason that Mahendra uses to say that Facebook will lose to Google, is the same reason why Google or any other social search player will struggle. Basic search treats all content types the same, meaning blog posts are the same thing as an article from a newspaper. Relevance is determined by a number of factors including authority (PageRank in the Google case), which is typically measured at the most basic level by the number of incoming links.
Without the context of why I am connected to a person, an aggregated social search may not be a great solution. Maybe site specific searches give us the context that we need to find information that is relevant. Another major point that is still missing is the personal authority and influence, which has been a major topic of discussion for many people. How does that fit with social search? Should I get technical articles from a connection that is an authority on marketing? Again, context rules, and without it, social search will be nothing more than an experiment.