Hello everyone,this is actually my first post in this forum and I find this thread really informative. As a beginner like myself who doesn't even know where to even begin, I came across a very good resource called Niche A day.
FREE Daily Brainstorming eMail.
The owner of the site sends a short NicheADay email everyday to you which contains a single niche market, the monthly traffic it gets and the current high PPC bid for that particular niche! The data is sent as an e-mail attachment in excel spread sheet and according to the owner of the site the keywords are from 180 search engines and best of all it is Free.