Beware the dark side of the force

Russell Beattie reveals that he is being tempted by the dark side of the force. I understand his dilemma. I'm building a personal, web-based aggregator for my Really Simple Blog project, which will allow me to add pages full of posts on specific subjects. So, am I a splogger? Aren't I just providing a convenient service for my readers? Where is the line? Am I still clean if I only allow partial posts? Aren't blog search engines just giant splogs?