Personal Liberty is gone.
http://www.amazon.com/41036-100-Watt-Soft-White-4-Pack/dp/B000U7Q7PK/ref=sr_1_1?ie=UTF8&qid=1379958934&sr=8-1&keywords=light+bulb+100W
Last night we had to change out a 100W incandescent bulb. I was curious and so went to Amazon. $7 for a 4-pack of 100W GE Softlite.
They are still available.