|Name:||HDFF Online: The Home of Happy Days Fanfic!|
|Date(s):||c. August 2002 - October 2009|
|URL:||HDFF Online, as archived by OoCities|
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The site hosted stories based on Happy Days or related spin-offs, as well as crossovers. It did not permit adult material and asked authors to "try to keep fanfic at a PG or below level," though it would accept PG-13 content at the archivist's discresion. The archive did not have length or quality requirements.
As of October 2009, the site hosted thirteen stories by seven authors, as well as three pieces of fanart. The earliest upload date is listed as August 28, 2002, and the latest as January 13, 2003.
- HDFF Main Page, archived by OoCites in October 2009.