Blackboard and Ning

registration process is simple

inviting environments display users' pictures

forward email messages and comments

shows recent activities

upload pictures, videos, and files easily

cannot divide discussion topics into sections

advertisements that are not related to the networks to distract users

shows users new messages and new discussions

discussion topics are divided into sections

post course syllabuses and weekly modules

jump through the hoops to register for classes

cannot retrieve information of old courses

does not forward email messages

takes several steps to upload a file