Australia
Index to Will & Letters of Administration from 1824.
Comprehensive catalogue of links to probate records.
Guide to probate records at PROV.
Indexes to Wills from 1857-1940 from Supreme Court files.
Information and links for probate and wills in every state.
Guide to Wills and Probate in New South Wales.
Guide to Wills and Letters of Administration in Western Australia.
Overseas
Scottish wills 1500-1901, free searchable index, digital images can be purchased online.
PCC (Prerogative Court of Canterbury) wills, 1384-1858, free searchable index, digital images can be purchased online.
Research Guide to probate records in U.K. before 1858.
Research Guide to probate records in U.K. after 1858.