Fifth Pass

Caleida and Vinova Weyr
A mature (17 and older) round-robin PBEM where shortly before the Fifth Pass the two remaining Weyrs seek to reunite dragonriders spread over Pern in small bands by a plague.
http://www.geocities.com/mazoku1279/Caleida_Vinova_Wey.html

Free Falling Weyr
A relaxed canon (female blue riders allowed) club set in at the beginning of an alternate Fifth Pass after seismic events reshaped the Northern Continent.
http://www.freefallingweyr.com/

Kazakii Weyr
A relaxed canon (female blue and brown riders allowed) full-post play-by-email club set in the Fifth Pass on the Southern Continent.
http://www.freewebs.com/kzweyr/

North Ranges Weyr
A relaxed canon (female blue riders allowed, but rare) club, set during an alternate Fifth Pass in the mountainous north as an auxiliary to High Reaches Weyr.
http://www.dragonslair.co.nz/northrangesweyr/

Southern Boll Weyr
A play-by-email club set in an alternate Fifth Pass timeline shared with North Ranges Weyr.
http://www.dragonslair.co.nz/sthnboll/