[NooneAtAll3]

i.e. == aka == in other words

e.g. == f.e., for example

[giantrobot]

"e.g." == exempli gratia == to give an example

"i.e." == id es == that is

[jcynix]

But both i.e. and e.g. might be more easily understood by non-native speakers of English (IMHO ;-)