To be a professional gambler, you need to be a man - at least this is what many media outlets and society as a whole are trying to tell us. Of course, men are seen as being risk-takers but this doesn't necessarily translate into them being the only gender to enjoy playing casino games. Stats show that as many women enjoy a few spins on a Royal Vegas slot machine than…
1 - start by reviewing stuff you already use and love
2 - make contact with PR reps or directly with the publicity contact for the companies who put out the products you're interested in reviewing (P.S. after a while, you'll start getting contact directly FROM reps who want YOU to feature their products)
The best piece of advice I can give you is to say that the more exposure you have and the more PR reps like your blogging and writing style, the better chance you have of getting contacted directly, and then the product review requests will start trickling in.