I've seen a couple of requests for a corporation deck-building guide, so I put one together on my blog. Feel free to stop by and check it out.

Dice Minus Seven

TLDR version: a reasonable base for a corp deck can be made from 18 ice, 9 economy cards, agendas to 20 points, additional cards to taste (49 cards total).

I think this is really solid advice and probably reflects the core of most Corp decks.

That said, once you know the 'rules' of corporate deckbuilding, it can be fun to break them going for ICEless remote-overload-with-many-traps is another tactic I've seen (although I can't say how well it works )