Yesterday I went looking for a niche to fill with advertising for my fictitious pet clothing website. I found out that while there is a decent amount of search for the term ‘pet hoodies’, ‘puppy hoodie’ and ‘pet sweatshirts’, there is not any advertiser competition at all. I carry pet hoodies and sweatshirts on my site, but had not considered advertising them specifically. The CPC for these keyword phrases is ridiculously low, and I decided to divert a portion of my ad budget in this direction.