Tube sites/books, recommendations please


After spending my audio life as a member of the solid state party, I am dipping my toe into the dark and mysterious world of tubes. I am purchasing a tube pre-amp in the next couple of weeks and am looking forward to doing some tube rolling. I am looking for any advice regarding either web sites or books that will help me get a basic education on tubes to get me started. Thanks so much in advance for any help offered...
lensteve
Also a good read that many follow is FAQ's at Audio Asylum.."Joe's Tube Lore"...More than likely you will be using one of the tubes eveluated..
I personally can relate to his findings on 12ax7,5751 and 12au7 tubes......
Ditto the suggestion for Brent Jesse's informative website. He's also a very good source for reasonably priced, high quality tubes, as is Andy at Vintage Tube Services.

BTW, don't stop with just getting a tubed preamp... you have to go the full distance and switch to a tube amplifier. Trust me... once you try a decent tube amp, you won't ever be satisfied with solid state.
Pdreher, "BTW, don't stop with just getting a tubed preamp... you have to go the full distance and switch to a tube amplifier. Trust me... once you try a decent tube amp, you won't ever be satisfied with solid state."

I completely agree, and feel that's terrific advice. In fact, given the scenario where I could only choose of the two, I'd go with the tube amplifier. No doubt about it. Only a tube amplifier can truly provide the sound of tubes.
Thanks so much for the information thus far. It's certainly possible that one day I will get a tube amp, but recently I acquired a near mint McIntosh 2255 that was built in May of '82. This has been a long time want of mine and to me has a wonderful warm, yet accurate sound that I've always admired. I guess I'll see how it goes with the pre-amp and decide from there...again, thanks for the help.
I would also agree with the Brent Jessie recommendation. He is very helpful and honest!