Depending on who you talk to, you probably hear a lot of opinions on how the keyword density of an article affects the piece in question. I always heard numbers ranging from 1% to 5% is an acceptable range. However, the keyword density is also dependent on how long your keyword is. This might come as common knowledge to many here on BHW, but for those who don't know, and those who are new to IM, here's a good way to calculate it. First, how many words is your article? Call this AL for "article length". How many words are in your keyphrase? Call this KL for "keyphrase length". Now, simply divide AL by KL: AL/KL = X X is basically an adjusted article length relative to your your keyphrase length. This is important to calculating your keyword density. Let KN be the number of times the Key phrase occurs in your article. (KN/X)*100 = KEYWORD DENSITY PERCENTAGE. I made a simple spreadsheet so you don't have to muck about with the calculations every time. PM me if you would like a copy. It would appear that until my account has sufficiently aged, I cannot supply a link here.