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.
There are also better quality sites offering cool tattoo ideas together with other resources and sometimes communities of like-minded individuals to exchange ideas and experiences. The better quality tattoo sites usually charge a nominal fee for access but this should be a small price to pay for a design that you can be proud of and one will stay with you for the rest of your life. Once you've had the ink done you can usually upload a photo to display your work of art and provide inspiration to others, or just to show off!
If you have an idea for a tattoo design, the better quality sites usually provide neat search features so that you can narrow down the choice depending on your initial ideas e.g. Tribal Tattoo, Back Tattoo etc. Paying a small fee for a cool tattoo idea is also a good way of increasing the chances of the design being unique, as many people will often take the easier (cheaper) option of free tattoo designs.
Despite all the quality sites available for cool tattoo ideas, if you're having any doubts or second thoughts then the chances you should not be getting a tattoo. If however you're dead set on the idea, and want to join the increasing number of people, from all walks of life, with tattoos, consider paying a little up front for quality and peace of mind.