Census-Online.com - census transcriptions for  Muskegon Co.
Interment.net - cemeteries of Muskegon County
Muskegon Co, MI  General Land Office Records  1807-1907
Muskegon County Marriages
Muskegon County, MI Genealogy Forum read and post messages about your ancestors for this county
Muskegon County, MI Genweb Project a collection of online resources for genealogy researchers
Pioneers of Muskegon County
The Tombstone Transcription Project - cemeteries for Muskegon Co. MI
US GenWeb Archives for Muskegon County cemeteries, newspapers, wills, military rosters etc recorded online

Additional Resources

Michigan Public Records Search find living & deceased family members/relatives including address, phone number, age..
Michigan Birth Records
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Michigan Death Records