From When Falls the Coliseum: "Thus I have a deep appreciation for the art of reference. But times have changed. Since the advent of the internet I no longer have to nag and be a nuisance at my local library. The thrill of tracking down an elusive tidbit is all but gone. Almost everything I ever wanted to know is available with the stroking of a few strategic keywords. When it is not? No worries. There is always Dave Lull — a jewel.
Jodie Lane: "The magnitude of Dave Lull’s presence on the net is awe-inspiring. It’s true. Dave is the real force behind the blogosphere. Sadly, I do not know the man, but I find him absolutely fascinating. He is the super-hero of the internet. Everywhere I read — Dave has already been there. Corrected, amended, and moved on down the lonely information super-highway."
Scott Stein: "apparently, the entire blogosphere owes all of its content to Dave Lull."
Patrick Kurp at Anecdotal Evidence: "I still get the question: “Who is this Dave Lull guy?” As Pascal said of God (no blasphemy intended) Dave is the circle whose center is everywhere in the blogosphere and whose circumference is nowhere. He is a blogless unmoved mover. He is the lubricant that greases the machinery of half the online universe worth reading. He is copy editor, auxiliary conscience and friend. He is, in short, the OWL – Omnipresent Wisconsin Librarian."
Susan Balee: "Thank you Dave Lull, you are indispensable."
Nassim Nicholas Taleb Warm thanks to Dave Lull for tracking reviews".
Or see Seth's blog
Many more acknowledgements of contributions by Dave Lull can be seen here