Calling light vs short stacks

[AceLuby]

OK, so first off I want to say I'm a regular donkament player and have made most of my $$$ playing those. Not huge winnings, but enough to start a small BR. Anyway, I'm now starting to play cash games to work on my deepstack skills, but am starting to see how profitable cash games are. I'm starting out in NL25 6-max for now, but plan on moving up soon as the game seems ridiculously easy to beat. Anyway, I want to know if it is common to call light from ultra short stacks.

An example would be say you are sitting around a buy in and a half (biggest stack at the table) and there are 2 or three guys at your table with 20-30 BB's. Say one of them raises on the button in your BB w/ 20 BB's. I've been calling down with anything suited, PPs, any face card, or any one gappers or smaller and trying to outflop them. If I check to them they usually put in about 1/2 their stack on the c-bet and raising them either puts them in or makes them fold because it puts them in. I have taken about a buy in from ultra short stacks in the last day or so using this and I want to know if this is common. Are there any links for playing players that buy in for 20-30 BB's when you have 200+?