Hi! I'm looking at doing Web 2.0 sites but I have apprehensions as I feel I will be giving too much efforts for too little gains. So I have a series of questions for SEO experts out there. 1. Is maintaining Web 2.0 blogs for link-building purposes still relevant in 2016? 2. If yes, is it ok to disclose in the contact page the contact details of your money site or do you hide this footprint? 3. If you build 10 high-quality Web2.0 blog sites with unique and really original content and openly state in the Contact Page that this blog is an asset of your money site, would you get penalized for backlink manipulation? 4. If yes, and I decided to change the contact details into something else, what would be the implications? I hope you guys can help. Thanks!