Blogging is great for finding other people who can really write! (modlychic.com)
Simply find other people with similar cars to yours, who live in similar climates, and find out what they have used and either liked or didn't like. (mechanics.stackexchange.com)
And you wont just find other people at the site who you find physically attractive, but you can easily identify people who are suitable in terms of interests and personality traits. (planetsappho.com)