What type of information?
–> The information that related to the user. For example, user A is in class Math A1 and Math A1 cancel class on 17/09/2012. It will show the user A when he/she log into the site and print activity some kind “Math A1 is cancel class on 17/09/2012”
How does it relate to the activity?
If you mean the activity in the site, it not related in the site’s activity.
do you mean you want to know how to add different types of updates to the activity stream?
–> Yes, in the same activity stream or another stream is OK.
