Google's +1 is pretty cool in this respect. If you +1 articles you read, their search scores will be boosted for your subsequent searches, so you'll be more lik

Google's +1 is pretty cool in this respect. If you +1 articles you read, their search scores will be boosted for your subsequent searches, so you'll be more likely to stumble upon them if you are looking for something related (but have forgot about what you read).