I'm going to pipe in on one of my "pet peeve's" on this grammar stuff . . . 
and this is probably just more ammunition in the blast Bill Gates and the 
evil empire . . . but here it goes:

I HATE the fact that software "fixes" your mistakes as you go.  A 
convenience yes . . . but it's making people into complete idiots.  If you 
make a common typo . . . and the software always "fixes" it before you 
catch it . . . how are you going to correct your mistakes?  You'll just 
keep thinking "thier" is correct . . . or whatever little correction 
feature is overriding your brain cells.  It's sort of like looking back at 
automatic transmissions on cars.  Once upon a time they were a luxury and 
most of the population knew how to drive a manual.   Now manual 
transmissions are a rarity and likewise the population that can drive them 
is a bit sparse.  (And of those, the ones that REALLY know how to drive 
them is even fewer and further between.)

Well, that's my .02 cents for tonight . . .