Here are some links that you might find useful:

Individual/Small Group Health Links

Wellmark Blue Cross Blue Shield
UnitedHealthcare
Assurant/John Alden
Principal

Large Group Health Links

Wellmark Blue Cross Blue Shield
UnitedHealthcare

Life & Disability Links

Lincoln Financial Group
National Insurance Services
Assurant
UNUMProvident
Mutual of Omaha
Principal
Prudential

Provider Networks Links

Multiplan
Gundersen Lutheran
Midlands Choice

TPA Services Links

Careington
Cobra Outsourcing Company
Wellness

Prescription Links

Caremark
Partners Rx
National Pharmaceutical Services

401(k) Links

John Hancock Participant Website
John Hancock Plan Sponsor
John Hancock Corporate Page
The Hartford Participant & Plan Sponsor
American Funds Recordkeeper Direct
American Funds Plan Sponsor
ExpertPlan Participant & Plan Sponsor
Ohio National
Principal Financial

General Links

IRS
DOL
EBSA (formerly PWBA)
Iowa Wellness Council

Flex Links

My Flex Online