As far as we can experience nowadays the natural backlinks are the necessary 'tool' to become a winner of the google game. Go for natural backlinks. It is quite easy to say, but is it easy. Not at all. For many of us free directories are a good source of backlinks, but they were devalued since it was recognised that most of those sites were opened not for the human visitors but for crawling bots. So how to go for natural backlinks? As first step create value for the human vistors, but it won't warrant you too much since in the era of the hardcore PageRank addicted webmasters you can not expect to be linked selflessly, because of the PR leakage, what a shame. So you need to provide possibility to gather backlinks which cost nothing for the site owner. And this is time when you place those icons to your site. Personally I belive that googlebot is smart enough to judge the social links as a sign of real, human acknowledgement. Plus, I can hardly suggest better for deeplinks.
