I am sorry to hear this!
Here is what seems to be an all inclusive support site and resource page...check it out. They will most likely be able to direct you to more specific groups as well to meet his needs.
http://www.everydayhealth.com/lymphoma/joining-lymphoma-support-group.aspx
This second one is for setting up an update/jounal type of notification for friends and family.
http://www.mylifeline.org/
Wishing you both the best.
S.C.