That ambush waiting on the other side of a star gate is ubiquitous in EVE, and is pretty much a core tactic used in the game. If you're on the pain-giving end of the scenario, you've probably got little to fear if the numbers (and warp disruption capabilities) are on your side, save for those sentry guns... and the occasional billboard packing heat. However, for those attempting to survive gatecamps that block access to a given destination, or bypass them altogether, there are a few things you'll need to know. Xiphos, of Agony Unleashed PvP school, has lived in 0.0 for roughly two years and recently imparted some tips on surviving gatecamps.
Xiphos' advice deals with the importance of scouting and the tactics involved with actually getting past the gatecamp. He also cautions about the tendency to freak out when faced with a camp, which of course is easier said than done, but he's right. Panic will get you killed. For the full details on getting through a gatecamp, be sure to check out "Surviving a gate camp" on Xiphos' blog -- A Misguided Adventurer.
If you've got other tips or advice on surviving gatecamps you could share (other than evading them in the first place), let us know in the comments.