You can find an eclectic mix of free albums here http://www.thestampweb.com/albums.html
Regular postage stamps, topicals, revenues, omnibus issues etc.
Please note, however, these albums have been created by a number of different people, mostly for their own use. So if the style of a particular album is not to your taste, this does not necessarily hold for the next. What is consistent however is that each person has offered to share their work as a courtesy to others.
Another thing worth considering is that in addition to being downloadable as a PDF file, the individual albums can also be downloaded as AlbumEasy files for easy modification using the free AlbumEasy program.