If you're lucky you'll have Cool Tattoo ideas that are personal to you and your life experience, which make a statement about who you are. Very often though this is not the case and people are forced to look elsewhere for ideas. Also, if you're lucky you may have a tattoo parlor on your doorstep where you can visit locally and sift through tattoo designs and discuss with the artist.
Visiting a tattoo parlor is not always possible though so most people are left with sourcing cool tattoo ideas from the Internet. The word 'tattoo' and tattoo related phrases are heavily searched via the search engines so many poor quality sites have been set up to take advantage of this. These sites usually offer poor quality tattoo designs and galleries, with unwanted advertising, which is where they generate their revenue.