Paddy Johnson asked 18 people to make a single pick for her 2009 best of the web post. Mine was Stephanie Davidson aka Rising Tensions (who made the GIF above). Davidson stands out on the list as the only artist making use of the web as a medium (both as content generator and aggregator). Other "best of" picks focused on individual freaky, aesthetic, or informative single web works. Not sure what conclusions to draw from that except maybe that the web is still a place of momentary sensations for most people and not a place for a sustained body of work.