First i would recommend you to start with Wealthy affiliate(if you don't know anything about PPC.)

They have a 8 week action plan,that should keep you there for 2 months,it is a perfect plan for understanding PPC.In the meantime when you are there read this forum,ask questions,read a lot about adwords from blogs,sites and from adwords help center(best resource).

That is for beginning ,and later get yourself a mentor.

Hi,

Google adwords help centre & google forum.
Also try yahoo.

Google adwords help center is a great place to start, however if you want move fast and need support forum, your best would be wealthyaffilate.com, campaignblasts.com, and ppc-coach.com. Each one of them have a different style, with wealthy affiliate you can learn both PPC and bum marketing, campaignblasts takes a very different approach on building your campaigns, and ppc-coach does more of CPA offers. All three of them have a price tag that is pretty much affordable for anyone starting out.