"When it comes to the question of where to post your paper, remember the objective is to get your research into the hands of those who need it. The more widely you distribute your article, the easier it will be for people to find. I post my papers on my own website, the institutional repository run by my university and a pre-print server called SocArXiv that hosts papers from across the social sciences. Other options include Academia.edu and ResearchGate, although there are reasons you might not want to use them. I use SocArXiv because it is indexed by search engines such as Google Scholar. SocArXiv (and some other pre-print servers) also assign a digital object identifier (DOI) to your article, making it easier for people to cite it even before the final version is published. Posting an article on a pre-print server is straightforward and usually takes only a few minutes."
http://lesscrime.info/post/how-to-stop-hiding-your-research/
http://lesscrime.info/post/how-to-stop-hiding-your-research/