Co. Armagh Civil Parishes Map
Co. Armagh Roman Catholic Parishes Map
Co. Armagh GENUKI
Co. Armagh IGP
Armagh Ancestry (IFHF)
Armagh County Archives at PRONI
Special Ingredients - Record Finding Aids
Co. Armagh Church of Ireland Parish Records Finder
Co. Armagh Registry of Deeds Townland Indexes Timeline
The Armagh IGP page is a bit of a mish-mash of information - you have to pick out the local stuff from the national references repeated here, but at least it appears to be being worked on.
The GENUKI page appears to have a very extensive list of hyperlinks to many resources that look to be specific to the county and is well laid out to understand timelines for example.