What are the grammatical rules for capitalizing words?
http://wiki.answers.com/Q/What_are_t...talizing_words
* The word "I" as in "I am" must always be capitalised.
* Names of businesses, people, brands, websites, and anything aside from the common noun should be capitalised.
* The first letter of every sentence must be placed one space away from the full-stop, and, yes, must be capitalised.
* Letters succeeding punctuation marks are only capitalised after full-stops, not commas, colons, semi-colons, apostrophes, speech marks, or brackets.