"It's" or "Its?" Do they have different meanings? Yes, they do and they are misused quite a lot. "It's" is a contraction (i.e., a short version of one or two words using an apostrophe) that means "it is." "Its" is a possessive pronoun.
It's going to take a lot of hard work and determination.
The best thing about this car is its fuel efficiency.
Introduction to Grammar Guidelines
With texting, Facebook, and Twitter fast becoming main modes of communication, the new shorthand lingo that is developing will no doubt bring about a higher frequency of grammatical, spelling, and punctuation errors. The rules that define proper English seem to fade into the distance as more people forget them and replace that knowledge with acronyms such as OMG and LOL. The hope for this site is to reinforce proper English grammar and continue to encourage eloquent writing and speech.