Census-Online.com - census transcriptions for  Phillips Co.
Federal Land Records - Phillips County compiled from the Bureau of Land Management land records and includes Homestead and Cash Entry Patents before 1908
Phillips County, AR Genealogy Forum read and post messages about your ancestors for this county
Phillips County, Arkansas Genweb Project a collection of online resources for genealogy researchers
The Tombstone Transcription Project - cemeteries for Phillips Co. Arkansas
US GenWeb Archives for Phillips County cemeteries, newspapers, wills, military rosters etc recorded online
World War II Honor List of Dead and Missing Personnel, Phillips County

Additional Resources

Arkansas Newspaper Search enter your Arkansas ancestor's name to instantly search the world's largest newspaper archive; over 12 million newspaper pages
Arkansas Birth Records
Arkansas Marriage Records
Arkansas Divorce Records
Arkansas Death Records