Published with some gaps since 1975, this is a great run of annuals featuring your favourite web-slinger. Lots of companies have had a go at publishing and the 2008 annual features a great cover of the Spider-Man 3 movie. The 2003 and 2005 annuals are pretty nice too with their Spider-Man movie covers.
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.