Cleveland District Round Table - http://usgenwebsites.org/OHCuyahoga/Activities/index.html and http://sites.rootsweb.com/~ohcdrt/index.html
NorthEast Ohio Computer-Aided Genealogy Society - http://neocag.net/
Cuyahoga County Lineage Groups - http://sites.rootsweb.com/~ohcdrt/members/pioneers.html
The Lineage Groups recognize families of long time residents of Cuyahoga County. Pioneers are those who arrived in the County prior to December 31, 1850; Settlers are those who arrived between 1851 and 1880; and Centurians are those who arrived after 1880, but more than 100 years ago (i.e. if they arrived in Cuyahoga County by December 31, 1918, they would be eligible for recognition in 2019).
Historical Maps of Cleveland:
Cleveland Jewish History
http://www.clevelandjewishhistory.net/
Developed by Arnold Berger, this list of virtual resources is a link to many
Cleveland Jewish History Resources.