Find My Past has just released the following data sets:
1861 Worldwide Army Index
Paddington Rifles 1860-1912
Royal Fusiliers 1863-1905
Surrey Recruitment Registers 1908-1933
The 1861 Worldwide Army Index is a useful source of information if you can't find your relative on the 1861 census as it contains the name, regiment and station of nearly a quarter of a million British Army other ranks serving in Her Majesty's Army at home and overseas.
The Paddington Rifles information has been compiled from muster rolls and contains details such as enlistment date and the man's occupation.
The Royal Fusiliers data is comprised from medal rolls for the India General Service Medal (Umbeyla Campaign), Afghan War Medal, Canada General Service Medal, Queen's and King's South Africa Medal and the Tibet Medal.
Finally, last but by no means least, the Surrey Recruitment Registers contain the often rich details of men who enlisted in the British Army at various recruitment centres in Surrey between 1908 and 1933.