There are several great sites that provide insights into World of Tanks, from sites that specialize in providing stats, to sites like WoTguru that provide articles and video links.
See below for some of Finnegan’s Favourites.
Noobmeter is great for looking up your own stats, or stats on tanks, clans and other players. You can also compare your stats to other players.
The World of Tanks Official Forum is also very useful, though it can be hard to find exactly what you’re looking for. You can find me there as well!
WotLabs is a fantastic site, and it’s greatest strength is in stat tracking for players, tanks and maps. It also carries articles, but these are usually written by volunteer contributors, so the articles are not regularly updated. One of the best things you can do with WotLabs is connect your World of Tanks account to your Wn8 rating, and this will allow you to show your overall and recent stats in the WoT forum when you make a post.
VB Addict is an incredibly valuable resource, where you can look up a wide range of stats. Their stats on each tanks ability to deal damage, their win rates, ability to make (or lose) credits are very handy when you’re trying to choose which tanks to grind or buy. Unfortunately, word is that VB Addict is shutting down soon, so use it before you lose it.
tanks.gg is another amazing site, and is often used by YouTube commentators like Quickybaby for doing tank reviews. It gives you stats on every tank in the game, and then goes farther by giving you 3D analysis of every tank’s armour, so you can figure out where to hit weak spots.
The Wot Wiki is another valuable resource, directly from Wargaming. It gives you detailed information on every tank in the game, so if you want it straight from the source, this is where to get it.
Tank Compare is a useful site when you want to compare different tanks head to head. Often used by YouTube commentators, it gives you the ability to look at various tanks, compare them to the competition at that tier, and make choices about what you buy or grind.
WoT Guru is a great overall site that is best known for its excellent weak spot guides. It also has articles and guides to various tanks, and its creator has begun making tank videos. There is a handy section on Map Tactics as well, that is best for newer players as they try to figure out where to take a heavy tank vs. a tank destroyer vs. a light tank.