We talked with 35 Search Marketing Gurus (including Aaron Wall, Rand Fishkin, Ann Smarty, Michael Gray, Todd Malicoat, David Harry, Gab Goldenberg, Ian Lurie, Patrick Altoft, Jill Whalen, Michael Martinez, Dana Lookadoo, Garrett French, Marty Weintraub and many more) about the best ways of determining the competitiveness of a keyword. This post is a compilation of the tips & tricks they shared with us.