Essential PPC tools

[seopeter]

Which PPC tools you use, i have some inhouse and few like
some possible suggestions:

Competitor Anaysis Tools
Bid Management Tools

[ryankrueg]

Google Cash Detective, Google Cash Automator, and Keyword spy can be combined to create an almost automated process of pumping out profitable campaign after profitable campaign, No Joke.

[tommytx]

For beginners the very best free keyword tool is the google free keyword tool. It tells you exactly what keywords google thinks is related to your main keyphrase. It's always easy to find by googling "google free keword tool"

[candiid]

Google free keyword tool and what's great is its free but one cannot completely rely on this so you may use couple of others as well .