On the following website you find historical texts, scanned, and available in hi-res for download, which is mainly interesting for those who are able to read it. But there are also more general resources, that I hope will be of interest to some of you, such as magazines, http://dl.ndl.go.jp/view/download/digide...ontentNo=1 and other papers. They are either available as pdf or as scan to browse through. Just to let you know, the magazine pages are also scanned, so direct c&p of text to Anki is not possible.
Edited: 2012-04-26, 8:02 am
