How to Use the Word "Of": Almost everyone has a few bad writing habits. They're often the kind of thing experts or even your friends can point to and say "Yup, I know who wrote that." One of my bad habits is that I tend to overuse the word "of." A while ago, I was working on a technical document, and as I read back through it I noticed that there must have been 20 instances of the word "of." Ugh!
Read and listen this grammar tip online: http://grammar.quickanddirtytips.com/when-to-use-of.aspx
More grammar girl`s tips for better writing: http://vk.com/audios-17650165?album_id=37377016