is hyip a good investment?

i've been wondering for quite some time about hyip. what are they really? how do they work? is it a good investment? what hyip sites that has proved paying?

i really hope mylotters can help me...

low cashout or high cashout?

i have stumbled upon quite a lot of sites, and there is sites that needs low cashout, around $0.10 - $0.50 or some other sites that needs high cashout like readbud ($50), or geostring ($100).

for...