Between Arenas, V'Ming spends his time as a lock laughing ominously in AV, tanking Olm with his own minions and pondering troll fashion from Zul'Aman. He's recently started to plumb the depths of SSC with his 0/21/40 build and bragging about 8k shadow bolts.
The internet is a beautiful thing. It gives everybody a voice and an easily accessible goldmine of human ingenuity and intelligence. (It is also a repository of human scum and stupidity, but we're not going there today.) As a warlock player, there are TONS of resources out there that you can use to improve your game. Unfortunately many of these resources are scattered far and wide - and it takes a certain deftness with search engines to separate the wheat from the chaff, or simply to find what fits your playstyle.