Co. Wicklow Civil Parishes Map
Co. Wicklow Roman Catholic Parishes Map
Co. Wicklow GENUKI
Co. Wicklow IGP
Wicklow Family History Centre (IFHF)
Wicklow County Archives
Special Ingredients - Record Finding Aids
Co. Wicklow Church of Ireland Parish Records Finder
Co. Wicklow Registry of Deeds Townland Indexes Timeline
The Wicklow IGP page is well populated with useful information, including good descriptions of the geography. Be sure to check out the Wicklow records via this page too as there are some very good cemetery transcriptions plus photographs too.
From personal experience I tried to visit the Wicklow Family History Centre a couple of times near the entrance to Wicklow Gaol and found it closed indefinitely - perhaps I should have read this excellent article first that explains its move to Wicklow County Archives! I have contacted the staff by email and found them to be very helpful.
There is also a a useful site run by the county Heritage Office called "Our Wicklow Heritage" - some useful genealogical topics and links