TimeMachine
Remove unnecessary backups from TimeMachine to get space
Completely recover space from sparse bundle when “hdiutil compact” is not enough
How to limit space used by Time Machine
Time Machine via NFS on Mavericks
Mac OS X Lion Time Machine Network Backup and Restore
Fix Time Machine Sparsebundle NAS Based Backup Errors
Reclaiming a TimeMachine Volume’s Disk Space
BackupLoupe
http://www.soma-zone.com/BackupLoupe/