Andrew Huang wrote:

        Yes, I'm going to be incredibly anal. But these things have been
annoying the Hell out of me ever since I finally got them right myself.
Anyways, here are some commonly broken grammar rules that I seem to be
finding here a lot.

  "Your" and "You're"
-Your: possessive form of "you". Ex.: "I'll always be _your_ friend."
-You're: contraction of "you are". Ex.: "_You're_ my friend."

  "Their", "They're", and "There"
-Their: possessive form of "they". Ex.: "That's _their_ property."
-They're: contraction of "they are". Ex.: "_They're_ not going to that."
-There: indication of some place. Ex.: "Don't go _there_."

  "Its" and "It's"
-Its: possessive form of "it". Ex.: "He's following the monster back to
_its_ cave."
-It's: contraction of "it is". Ex.: "_It's_ a nice day today, don't you
think?"

  Another thing: try not to switch back and forth between present and past
tenses when writing. It's very grating. Sorry to do this to you....

>From Andrew Huang, Taiwanese-American-German-Scot Harvard Student :P
Brought to you by his computer, Oddzilla
Oddzilla says, "Ryouga and Ukyou! Ukyou and Ryouga!"
http://www.hcs.harvard.edu/~alhuang
Kurimoto Shiro's manager, DBTFH

Hey, you are not being anal. If you're going to use any language you 
should care enough to use that language properly, After all, english is 
not everyone's first language and some people would may a hard time 
decyphering what a sentence means if you're using the wrong words or 
tense.