Every massively multiplayer game has some sort of gathering mechanic where players can use items they find to craft useful things that they won't have to spend money on. The Elder Scrolls Online will be no different, as a new video talks about exploration and gathering in Tamriel.
ZeniMax Online Creative Director Paul Sage talks about how exploring will make it easier to find plants, skins or other ingredients for crafting, saying that just about anything can be used in various recipes found throughout the world. Players can buy books from the Mage's Guild to get more information on the world, or find hidden locations that yield chests full of random loot.
Check out the trailer to see how things will work in TESO (which will be pretty much the same as most other MMOs).
BOOM video 15325