In the NYT section on Media and Advertising: Good piece by David Carr on the ethics of blogging. On the aspects of aggregation versus completely novel column writing. I aggregate in this blog, curate is the new term, it is the ideal format for the Web, where we all stand on the shoulders of others, and can make that obvious using the simple hyperlink.
The article mentions the proposal of two glyphs that represent whether the curator of the information has directly quoted the information, or was simply inspired by the information. Not sure I think this will be clear enough. Why not simply include a link to the original right material up front, and the information in quote marks?