Popular Formats in 2007
PDF
1,591,277
RTF
842,967
eReader
539,404
Mobipocket
215,870
Large Print PDF
210,215
Sony (Librie, Reader)
106,151
Palm Doc
92,428
iPod
67,442
Cellphone (.jar)
55,059
Custom HTML
29,282
Plucker
26,480
iSilo
25,722
iLiad PDF
19,349
zTXT
15,349
Rocketbook
9,892
Kindle
8,868
iPhone Books.app
4,688
Bookmarklet
2,808
TCR
1,784
Newton
897
Total: 3,865,932 downloads from January 1 to December 31, 2007.