Pictures of Scotland

Calum Davidson's Cromarty Firth pictures on Flickr
Alan Moar's Aerial Photographs of Scotland on Flickr
MOTCO Images Database
Select "Prints - Reference Database", then "Voyage Round Great Britain" 308 aquatint plates, by William Daniell 1814-25 - possibly the greatest topographical plate book ever published.
Vincent Lowe Photography - stunning photographs (film and digital) worldwide
History of Photography in Edinburgh - over 6,000 pages of pictures and info.

Maps of Scotland

RCAHMS (Royal Commission on the Ancient and Historical Monuments of Scotland).
National Library of Scotland - old and new maps.
Geograph - a picture for each 1km square of UK.
Scottish Parish Maps
Old Maps of Scotland (large scale)
Tongue Parish Map - Modern
Blaeu Atlas of Scotland 1654      Blaeu Map including Tongue
(note that Kyle of Tongue is called "Loch Kuntaill").
Get-A-Map free Ordnance Survey maps on-line.
"Magic" interactive UK maps
Heavens-Above Locations Database
Latitude, Longitude and Altitude, even for tiny places like Scullomie!