According to the research, 13% of bloggers describe themselves as "entrepreneurs" (paid by companies for their posts) while an additional 8% were full-time corporate employees posting on behalf of their employers. Another 13% of bloggers report that they write to "earn extra income on the side". (This means that at least one-third of all bloggers may be posting "paid for" content!) The majority of the bloggers (61%) are hobbyists who post less frequently than daily. Just 5% characterize themselves as bonafide, professional, full-time bloggers.(Technorati)

Some blogs take no corporate support in any form. Some are written by corporate employees. Others could potentially be receiving plenty of free samples or advertising support, but at the same time remain completely unbiased about products and services in the recommendations they post. Still others write what they are told. You need to know which type of blog you are trusting for advice. Find out