OKCupid takes it a step farther with their match percentage heuristics; you can search by compatibility, personality traits, questions answered and most importantly: keywords.Keywords are incredibly important when it comes to raising your visibility and attracting the right attention in online dating sites.
Some systems let you tag specific keywords in your profile; others use the Google search API.
Even if a particular site doesn’t have the option to search by keywords, make sure that the words appear in such a way that they’re hard to miss; you want someone skimming your profile to see those keywords and pause long enough for you to capture their interest.
In online marketing, this is known as SEO or Search Engine Optimization: the art of ensuring that you show up more prominently in search engine results than your competition.
The idea applies to online dating as much as it does trying to get your blog to the first page of Google search results.
Other dating sites have different ways of keeping more active members in the forefront.