Try to use a datacenter that's SAS certified, based in the UK and doesn't have any XXX related or spam sites on it (ie not the cheapest hosting providers)
Dedicate servers is more important for Social networking sites and business sites. I brought hosting service for 6 months just for trial and not I am not satisfied with service. Now i wish to move my sites on good server but i have no more idea about server. Can anybody suggest some server name which is good?
I think you should make sure that the hosting company you choose should offer your enough security to protect your data and should have 24x7 customer support as well.