Cleveland Historic Maps, Finally, someone has stitched together several historic plat maps of greater Cleveland -- for 1852, 1874, 1881, 1898, 1912 and 1920/22 -- and aligned them to allow you to switch between years for any location you select! We've needed this for years. Thanks Chris at ESRI Products.
RailsandTrails.com, Steve Titchenal's wonderful map site, containing a trove of digitized maps, charts, plans, topos, pictures and other historic images, in the powerful (yet simple) "Djvu" compression format.
Ohio Land Subdivisions (Volume III of Final Report, 1925) - Only the chapter on the Western Reserve has been digitized and offered here. The huge map that accompanies this book has not be digitized.
Knepper, George. The Official Ohio Lands Book in Adobe PostScript (PDF) file format, from the State Auditor's Office. This is a large file (979K) showing 63 Postscript pages when loaded. You need to have an Adobe PostScript reader installed to see this document.
"Geography Gets the Blame" - Steve Kurdziel's thought-provoking Plain Dealer essay on why Cleveland isn't a lakefront city. (It's the cliffs)
Western Reserve Historical Society Library - the region's premier historic map collection (Their collection of historic maps of Cleveland and the Western Reserve are now available in their library on color microfilm!)
Ohio Historical Society Library - the other big collection of historical maps of Ohio, including some of Cleveland and northern Ohio. Didn't find any particular mention of their map collection, however.