CenturyLink serves most of Iowa
Windstream also offers network services in Iowa.
Energy Sciences Net (ESNet)
Iowa Communications Network
University of Iowa Information Technology Services
MREN is an association of Chicago-area institutions.
Educause is an association of higher education institutions.
The IETF houses both RFCs and Internet Drafts
Publications about computing and communications.
Info for Internet Service Providers.
Info for Network Managers.