Yeah, here on Scubaboard. There is a magazine called Undercurrent that has good info on destinations organized in a useful way, though you can probably find much of the same info here someplace.
Certain magazines are mostly about the advertising, fine to enjoy the pretty pics and get ideas, but not necessarily a source of reliable info. Hopefully those will be obvious.
General travel sites like travelocity can be great for hotel reviews and many other mainstream things, but not so much for dive info. Serious divers will post reviews on dive forums not general travel forums, where reviews tend to be from people who either dive infrequently and think everything is awesome, or have unreasonable expectations of how things should be. Just like anything lots of reading between the lines is required.
Facebook groups can be useful for the area they specialize in. But asking in say a regional US Fb dive group about diving on some Caribbean island, while it may get some answers, from what I have seen they may not be very good ones.
Top 10, 50, 100 lists are generally suspect.
