Barnstable County GenWeb Project a collection of online resources for genealogy researchers
Barnstable County, NC Genealogy Forum read and post messages about your ancestors for this county
Census-Online.com - census transcriptions for Barnstable Co.
Falmouth; Vital Records of Falmouth, MA to 1850
Interment.net - cemeteries of  Barnstable Co.
Provincetown Records, Massachusetts 1698-1859 includes Births, 1698-1802; Marriages, 1745-1783; and Deaths 1730-1783, Marriages solemnized in other towns, Births and Deaths by Families 1785-1841, Second Book of Records of Births and Deaths 1816-1846, AD 1838, Records of marriage (1841-1844),Intentions of marriage (1796-1807 [partial] and 1841-1859)
The Tombstone Transcription Project - cemeteries for Barnstable Co; MA
Truro Vital Records to1849
US GenWeb Archives for Barnstable County cemeteries, newspapers, wills, military rosters etc recorded online here
Yarmouth Vital Records to 1850

Additional Resources

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