I am a big fan of services that rewards points for searches. In the past all major airlines had toolbars.
Hawaiian airlines was my favorite. For a long time you could make up to 5,000 miles per months. Over the years I was able to racked up over 100,000 miles total just with searches. United & co had their own but less generous toolbars which got all shut down.
I know that the search game is a slow game, but it can add up. You need patients.
Here are the ones I currently am aware of:
Does anyone know any good sites that earn miles & points with searches? Which ones have good search results? Which ones are painful/interruptive (e.g. have capatchas).