I've come across a some cool blogs in my searches and am keeping an updated list in the "Recommended Blogs" widget off to the right - check them out!
I've also highlighted below some blogs/resource pages with helpful information about obtaining postal products (e.g. covers) or with detailed documentation of postal items (e.g. postmarks).
blog documenting Canada's pictorial cancels (including size & run date) and provides an interactive map to view the cancels
blog to document sending a postcard every day in 2024
My Stamp Stuff (blog | Philatelic Covers from Antarctic Research Bases | List of Unique Post Office Locations and Stamp Cancels)
blog documenting stamps and covers and provides many useful links for obtaining your own
blog documenting archeology postage stamps, postcards, postmarks, and other postal items
Post Office Addresses for Special Cancels
- Antarctica - Australia (AAT), Brazil, Chile, France (TAAF), New Zealand, UK (BAT), United States
- USA - U.S. National Science Foundation