Here is some highly recommended reading to get you started on how to advertise on blogs like Pretty Shiny Sparkly (http://www.prettyshinysparkly.com) and other successful blogs that rely on product reviews and discoveries for fresh content.
These are some really great books to get you started on the word-of-mouth marketing revolution that is taking the PR world by storm. I run a women's fashion/style blog that is very popular called Pretty Shiny Sparkly, and find that when I discover a product online that I like and want to share (via a post) with my readers, many times after checking back on that post a week or more later, that item has completely sold out. Such is the power of blog marketing. Additionally, you can even find twitter users to sponsor a tweet with "Sponsored Tweets" which can instantly reach thousands of people. (Shameless plug: sponsor a tweet with me at http://bit.ly/6W1dJe )