•  Minolta FAx (Forum & Ax FAQ) - recommended
•  Bryan Bigger's Digital Camera Experiments - recommended
•  RS Blum's DiMAGE7 pages - recommended
   
•  Jakes Digital Camera Pages - CCD test, RAW format
•  AllDiMAGE
•  Another unofficial DiMAGE7 page
•  Tips for using the Minolta Dimage 7 successfully
•  Minolta Europe - Manuals, Firmware, Software, ICC profiles
•  Minolta USA - FAQ
•  Minolta USA - Manuals - for cameras (for 3600/5600 flashes too)
•  Minolta USA - Software
•  Minolta Czech - Depth of Field table for D7
   

Discussion forums for Minolta digital cameras:

• Bryan's Minolta Forum on Network54 - really interesting information here
   
• Minolta Talk on dpreview.com - lot of users, lot of garbage
• Neat Image User Forum
• Praxe s digitálními fotoaparáty MINOLTA (Czech language)
   

Software links:

•  Exifer for Windows - very nice EXIF info viewer by Fridemann Schmidt (can partially decode MakerNote)
•  ImageShifter - Patrick Porlan's tool for working with RAW pictures
•  Neat Image - really good soft for reducing noise in digital pictures
•  DOFMaster - calculator of Depth of Field and Hyperfocal Distance