The CPS-VO Portal provides extensive support for Special Interest Groups. Exemplars of types of groups are:

Much of the collaboration services that this portal provides are based on groups. Groups are compiled of associated members. Each Portal user can browse the list of the public groups or see a list of the groups that they belong to in "My Groups". My Groups is listed as a tab on the "groups list" page and also as a dropdown menu at the top of the website. The following steps show how to join groups.

Memberships in web sites are often required because the services that they provide are driven by information that the member needs to manage. Keeping track of passwords is a burden, but receiving the added services can be worth it.  You will need a valid email address to become a member of the CPS-VO.