I Like Stumbleupon.com I use it when I am bored. (I have ADHD so I get bored quick lol) It takes me to a lot of sites I have not seen before, I do a lot of searchs but stumbleupon I think finds me exactly what I am looking for.
And when I am just searching with google, I add my "likes" to stumbleupon.
I find a lot of stuff along the way (go looking for 1 thing, find 20 other things I am not looking for, but there 99.99% intresting)