There is a website (forum) in my niche that has done the following: The owner has set up 1 site for each category in the niche, and all of them link back to his forum. For example, let's say the niche is Porsche cars. He has a forum called PorscheCarTalkForums.com. This is the site he is trying to get traffic to. He then has 10 more domains, lets say 1) PorscheRims.com 2) PorscheEngines.com 3) PorscheParts.com 4) PorscheKeychains.com 5) PorscheAccessories.com Ans so on... All 10 sites are just 1 page of information about the particular topic. They all encourage people to visit his PorscheCarTalkForums.com site. Is this a good strategy? Also, What if you set up 100 sites about your niche and linked them all back to your main site? (your main site that you were trying to drive traffic to) Could this hurt you in G? Help you in G?
you can play all these until google wont find your game. For that you need to host those sites with different IP adressess servers. If all these are from only 1 ip then its waste.