You can put a crafted item into the socketing quest in Act Five and get 1 socket added only, same as Rare, Unique, and Set items. During the beta Crafted items were allowing up to three sockets, but this was due to a bug and has been fixed.

A "Blood Weapon" recipe #2 with a Balrog Blade, the elite version of a Giant Sword. Recipe is +2-6% life leech, +20 Life, and +40-80% Increased Damage. This item has been through the socketing quest, which is in the beta adding max sockets for the item type. This is a bug, in the final game this will only add 1 socket to a Crafted Item. The random mods on this one worked incredibly well, with bonus damage, bonus to demons, and even min and max damage added. The Shae rune adds IAS, and there are two sockets to go.