Zigmas, the only thing that you seem not to understand is that you are not a regular internet user - a regular user searches for some info on Google, finds it, reads it and leaves the page. So when a blogger creates content he hopes that the internet users will find this content on HIS blog instead of on some splog where content is stolen from other bloggers. Simply because regular internet users do not really often click through to the original source if the entire post is already available for review :) Keep in mind that you are unique when making assessments of user behavior and blogger reactions :)

I can not agree that blogs are merely for self-expression any more. I know what a hard full-time job blogging is - I've been managing Profy blog at http://www.profy.com/blog/ for a year and a half now and I know how difficult it is and how little of enjoyable personal self-expression a serious problogger can find in the process. And some blogs have really become a very important source of information on topics such as politics or technology - which have nothing to do with personal information.

As for your proposal to use bloggers to collect information, I don't think it is all that easy to manipulate people to do what you want - they will always do what they find interesting, entertaining and enjoyable and hardly anything else. Don't you think so?

Thank you for the explanation of Diigo disadvantages - when you are only a trial user, you will never get the whole picture of what the product really is, it is always better to ask a heavy user or a professional :)

Svetlana