Gravity is basically a metric to tell how many individual affiliates have made at least one sale of that product in the last 30 days.
People get ALL fired up about products with really high gravity. While, yes, this is great to know that LOTS of people are making money promoting this product, it also means that LOTS of people are PROMOTING this product and working that market.
Unless you can find a unique angle to promote that product, its best to stay away until you have more experience under your belt and more resources at your disposal. My opinion from experience, take it for the two cents it is worth.
Regardless of whether you start with the product or start with keywords, make sure they really relate to each other. Recently, someone in a forum said that ‘keywords are a conversation’. I love that because it is so true. These words and phrases that you are finding are part of a conversation a reader/Google searcher is having with him/herself as 8 he/she goes from the info gathering stage to the buying stage. (Ό I like to capture some of both in my campaigns… offer information to those new to the market and hopefully keep them as they go through | the process to buying. So far, it seems to work well for me. However, didn’t get good at that over-night! Cut yourself some slack and just get to work. There is no campaign that can’t be improved on.just get something out there.
