I've heard many people teaching the importance of social signals. So I tried creating some social profiles from my money site, interlink them and link to my money site. I also get my site shared on social sites such as Facebook, twitter,? However, I wonder whether it really helps in ranking? After months, Google only index 1 social profile (Facebook) of my website. My Google plus page and Twitter page are not indexed at all. Anyone got any proof that social signals help ranking?