Here is a list of working shrines that I visit regularly. (Three of them are the ones that I sponsored and the rest either created by colleagues or recommended to me by various folks during the writing of this article.) This is hardly an exhaustive list, but it's a place to start. Because I am Heathen, these shrines are mostly biased in that direction, but several people emailed me with links to their favorite shrines as well, so there are a few Hellenic, Kemetic, Sumerian, and Celtic shrines in the mix too:
Working Virtual Shrines
The Facebook shrine to the ancestors I mentioned above
Frey, Golden God of the Harvest
Norse Gods of the Sea: Ran, Aegir, and Their Nine Daughters
Kari, God of the North Wind
Logi, God of Hungry Flame
Angurboda, Ironwood Chieftain, Jotun Goddess
The Goddess Mengloth, and Healing Goddesses
The Moon God Mani, the Sun Goddess Sunna, and Their Family
Breiðablik Temple: A Northern Tradition Temple dedicated to Odin and Frey
Author E. Vongvisith's Loki shrine
Sigyn, Loki, Heimdall and several other Gods
Another for Sigyn and Her sons
Idunna, Goddess of health and youthfulness
The Ancestors - go and light a virtual candle to your dead
This is only the list of personal shrines that I know of, or that I regularly visit. I'm not the internet generation, remember. My instinct isn't necessarily to search the web for ways to make offerings. So, I know there are more out there and I encourage my readers to post links to working shrines so that we can all explore them, add them to our lists, and maybe, just maybe, leave an offering.
A big thank you to everyone who emailed me their favorite shrines for inclusion.