Sophia Learning
Sophia: Capitalization
This tutorial teaches standard rules of capitalization and common errors. It offers a PowerPoint presentation over the rules for capitalizing proper nouns and information on capitalizing abbreviations with examples. This is followed by...
English Plus+
English Plus: Grammar Slammar!
An easy-to-use grammar resource containing rules for style, usage, capitalization, abbreviations, punctuation, and letter writing. This site also includes a glossary of common grammatical mistakes.