How do you find the sites I've asked you about?

What’s your particular means of exploration throughout the web?
I use stumbleupon to reach some of the most random sites the web has to offer.
Fluther, here is a very useful means as well, because one can consult others and share what they’ve found together.
But what are the resources at the basis of these discoveries?
I mean, of course the less known and popular ones as well.
I constantly enter keywords in my search engines that may lead to new and ever more curios resources.
Reveal your secrets, if you like.