Table 1. Summary statistics for forum participation in FOBS -1 and FOBS -2. # parts., #posts, and posts/user (std. dev.) denote the number of participants, number of posts, and average posts per user (along with standard deviations) for each sub-forum, respectively.

	FOBS -1			FOBS -2
Sub-forum	# parts.	# posts	posts/user (std. dev.)	# parts.	# posts	posts/user (std. dev.)
Technical Feedback	250	519	2.08(2.8)	109	233	2.14(3.3)
Course Material Feedback	281	487	1.73(1.9)	289	537	1,86(2.5)
Study Groups	1,387	2,730	1.97(3.4)	2,022	4,573	2.26(3.9)
Readings	1,120	2,334	2.08(3.0)	137	209	1.53(1.0)
Lectures	638	1,262	1.98(2.8)	470	1,175	2.50(3.0)
Questions for Professor	305	610	2.00(3.1)	370	785	2.12(3.2)
Final Project	1,078	2,612	2.42(4.4)	630	2,224	3.53(6.6)
Cases	1,222	4,669	3.82(5.6)	987	4,397	4.45(7.8)