I would recommend splitting into no more than three sites then have each site hosted with a different web host as to help when you link them to one another. Links between multiple sites at the same server IP can raise a red flag with reference to trying to spam the system. That may not be your intent and your sites are probably all going to be good information sites but I always try to do everything possible to stay off of Google's "bad site radar". Just a thought..........
That sounds like a very good advice to me. A large number of sites is going to be a waste, as you wont be able to create backlinks to all of them. Max 2-3 would be ideal. logodesign77 is absolutely right about the Ip address. If you need a cheap host that offer multiple class C ip, look @ ixwebhosting. Astill, I would recommend only one way linking.
Yes just go for few sites choose your niches and promote them. not try to go for many. concentrate on few sites and enjoy.
hi i think you should focus on one website first try to promote it a lot and get good rankings and visitors after you have done a lot of promotion and got successful with it then move on to other sites moreover this would also help you in getting experienced on how to promote a website if you concentrate on one website first and would not even create a mess which is likely to happen if you try to manage 10 sites at once ankur