I guess this is best for the Word Mechanics forum because it deals mostly with...guess what...the mechanics of words but tell me: What online subscriptions do you guys have to assist your writing? What I mean is, I'm thinking about a two-year membership to CMoS to check my technicalities, to Merriam-Webster to unlock some of those subscription-only definitions and whatnot. They're paid, so I stand to lose out if they're no good. So instead of Merriam-Webster, why not go with Dictionary.com? I figure it's good to try Merriam-Webster out and see what it's like. From what I hear from professional editors, they use it as standard. Any thoughts on these or other sites?