possible oil leak points

when i first bought my car, i noticed there was a small amount of oil leaking down the length the of the oil filter. i didn't really think too much about it, since it was a used car and it was probably a cheap-o filter. i installed my K&N filter and changed the oil about a month ago, and its still leaking. i'm guessing it could be a problem with the thread on the section i screw the filter on, but just out of curiosity, wat are some other places oil can leak from?? i don't want to have to replace a $130 oil pan for nothing...

around oil pan

it could be the seal between the block and the unit that the oil filter screws on to. also could be oil pressure switch

just an idea, but did you make sure you put the little rubber seal on thats inbetween the filter and the car?

There's an oil sending switch somewhere around the oil filter, Chevys were bad about these things leaking.

after installing the new filter, leak from the filter went away. its just the plug, need to buy a new one. that'll set me back a whole $1.87