I too wrote about PayPerPost and then received an email from one of their investors stating that they do now require disclosure.

However, after researching the topic for quite some time, it is clear that bloggers in this for the cash are coming up with some very creative ways to hide that disclosure. Thus, we’re pretty much back to square one with this: bloggers will have to take extra strides to earn credibility if they’re in the product or service review business.

Great blog… great About.com work you do

- Michael