After searching for a very specific document for an online class, I found it listed on Nitro Downloads. There was an offer for a 7 day trial for $4.95, so I stupidly signed up and then tried to DL the document. it just loops you back to the sign-up screen over and over. When you follow the instructions that come with your sign-up email, you get directed to "mediafeed" sites, which has a comlete downloadable search program.
It in turn has a spiffy search window that fails to locate ANYTHING you want. I even cut and pasted the exact document title, but get "no results found" no matter how or what words I use. There are no phone numbers or email addresses for any "help" or tech support channels. I will be reporting them to my credit card company as a fraud and will try to block the $69.95 I will no doubt be charged for failing to cancel my "trial" membership. This scam has cost me over 2 hours of my ever-approaching deadline...
THANK YOU for the warning regading Nitro. I was just about to do the same thing with the $4.95 trial. I was a little wary, but sort of desperate. I am so glad I read your warning.