I started three websites simultaneously on the same domain but all with different purposes. I want to know how SEs will take them now, will they effect my search engine rankings. First website is http://expertscolumn.com which is about Adsense revenue sharing where users post articles and make revenue through adsense. Second one is http://tech.expertscolumn.com, a site about technology related stuff, And third one is http://cars.expertscolumn.com, for cars related stuff. I started technology site almost 10 days before Adsense revenue sharing site and then came cars blog. Before starting Adsense revenue sharing site, traffic on tech site was decent but afterwards it started diminishing. There is still negligible traffic on other two sites and traffic on tech site is also continously decreasing. I need your suggestions about this.