T.I.L. (Today I Learned)
Often used as a space saver on websites such as Reddit or DIGG when writing the titles of links to interesting things the submitter has learned that day.
TIL that a meter is the distance light travels in 299,792,458ths of a second.
W.A.E (Would Anyone Else)
Shorthand for sites such as Reddit when a user asks others their opinion about something.
WAE make a one way trip to Mars?