What chess websites are worth subscribing to? I am a member of ICC and I find it useful although it may be a bit pricey. In a recent question about "What types or kinds of chess players are there?", chubbycantorset pointed out a video on www.chess.com by GM Kaidanov. I started watching the video(s), but realized that they only show you the first few minutes unless you sign up, so what chess websites that require a paid subscription are worth it?  This may be subjective, but I will limit worth it to mean: Quality, Community Size, Features, and Price.
Not a pay site, but FICS (free internet chess server) is my go-to for online chess.

Chesstempo is where I go for tactics and endgame puzzles (I think they have a subscription option, but I haven't subscribed, and so can't say for sure).

Playchess is associated with ChessBase and although I haven't tried their online service, ChessBase is an amazing program and good company--- they also sell video tutorials.

Utlimately, I'd recommend using the money you'd spend on a subscription on a good chess coach--- nothing beats that.