I have 'found' digital copies of all of the uncanny x-men (vol 1) from #1-541. I also have a number of annuals and giant size comics. My question is whilst I am reading these, when do I read each annual (i.e. read annual 1 after comic #24 or something)

Look through this http://marvel.wikia.com/X-Men_Reading_Order

I know it's easier to place some of the earlier annuals than it is some of the later ones.

I had to correlate release dates of the Uncanny Books and the Annuals, and I think this is what you are looking for... 6 months late, but it exists nowhere else.

(uncanny book # = released month before annual)

X-Men #66

#1 Dec 1970

X-Men #71

#2 Nov 1971

X-Men #123

#3 Aug 1979

X-Men #138

#4 Nov 1980

X-Men #149

#5 Oct 1981

X-Men #162

#6 Nov 1982

X-Men #175

#7 Dec 1983

X-Men #184

#8 Sept 1984

X-Men #199

#9 Dec 1985

X-Men #211

#10 Dec 1986

X-Men #222

#11 Nov 1987

X-Men #234

#12 Oct 1988

X-Men #246

#13 Aug 1989

X-Men #262

#14 Jul 1990

X-Men #278

#15 Aug 1991

X-Men #287

#16 May 1992

X-Men #300

#17 June 1993

X-Men #313

#18 Jul 1994

X-Men #325

#19 Nov 1995

X-Men #335

#20 Sept 1996

X-Men #347

#21 Oct 1997

X-Men #358

#22 Sept 1998

X-Men #364

#23 Feb 1999

X-Men #376

#24 Feb 2000

X-Men #388

#25 Feb 2001