Cancellations & Pre-Cancels - Who Looks?

On a previous thread SCF member "chasa" displayed a precanceled U.S. postage due stamp and got me to thinking. I rarely looked at the cancellation of a stamp. Until just recently, I never researched them. I have always been concerned about the quality of the stamp and the quality of the cancellation. Where it was postmarked was of not much interest.

I believe I missed the boat on this. Just goes to show that there are so many aspects to this hobby.

Can anyone recommend a good reference book or site on cancellations and precancels? I think I seen it posted here before...

Art

There are many websites out there with loads of information. For precancels, you can start here:

http://www.precancels.com/

For postmarks on regular US stamps, this is a good link:

http://www.postmarks.org/

Others SCF members will chime in with other references, I'm sure.

I'm filling up my "bookmark" menu! Thanks so much for posting this, and thanks to wt1 for providing the links!

Lynn