Depends also on how growth is being defined. Listed a few below; if unanswered, just means not sure.
Growth Factors Seen on eBid - Long Term > 1 Year (LT)/Short Term (ST) < 1Year
Multiple Site Enhancement LT & ST - Yes
APP(s) Launch - ST - Yes
Blog Launch - ST - Yes
Social Networking Launch - ST - Yes
Sales- LT (Yes)/ ST ( )
Site Traffic - LT/ST - (No)/(No)
Membership - LT (Yes)/ ST ( )
# of Listings - LT (Yes)/ ST ( No)
# of Stores - LT ( )/ ST ( )
Forum Use - LT (No)/ ST (No)