Redline does not really have a website but you can order their newsletters and some other things. They are expensive, but quite detailed.
RDS is a French television channel.
Central Scouting Service (or CSS) is the NHL's official scouting bureau and they do have a website that you can access. They don't have detailed profiles (I don't think) but their rankings are a good guide.
Mckeens is another website. It's cheaper than Redline, but less detailed, I think.