Y'know it never ceases to amaze me how many times people make this mistake. They mean to say "their", but practially most of the time spell "there". And this from accomplished people! Amazing. I find once you are alert to this one you usually catch it 'cause you're more careful. Oh ya, there's another one. There seems to be confusion with "you're" and "your". Again, if you keep an eye open for these you'll be amazed how easily you can improve. Anyone seen any others?
More like grammer mistakes. But often I will see people put apostrophes where they don't belong making things possisive. Like I love those "Ferrari's" when it should be Ferraris.
Could of, would of, should of; instead of the proper forms could have, would have, should have or the variations with the contraction 've.
There was a discussion about IRREGARDLESS. http://www.ferrarichat.com/forum/showthread.php?t=84791&highlight=irregardless
haha. Ummm...360 Spyder when it should be Spider. How about, should it be, Ferrari 360 Challenge Stradale, or is the proper name just, Ferrari Challenge Stradale?