Defense of the Ancients (DotA) Allstars is a Warcraft III mod that is insanely popular and equally fun. Currently this happens to be the only online game I play. DotA Allstars, or just DotA, is a mod so popular and well put together that Blizzard has recognized it and even hosted tournaments at BlizzCon!
One of the key things to being successful at playing DotA is constructing the right items in the right situations. In game there isn’t a ton of time to spend agonizing over what to build. Luckily, there are a ton of great items lists you can check out or print and use during the game. This should help you to come up with the best possible builds in all kinds of situations.
The most interesting guides I’ve seen are these two images from “thenonhacker”:
DotA Allstars 6.35 Item Table and DotA Allstars 6.35 Item Chart. These are the images I have thumbnails of on the left. The item chart shows visually what items lead to what other items. The item table categorizes each item and shows in chart form exactly what benefits each will provide.
On the official DotA site there are three must see pages:
An interactive one page listing of all the items by shop.
Note these links and this information was updated as of DotA version 6.34/6.35b