Some good info from Renasas's FAQs

[allanw]

There's a lot of good general information at Renasas's FAQ page about op-amps, comparators, transistors, and other general design principles which might come in handy:

http://www2.renesas.com/faq/en/f_op.html

[VIPR]

Thanks for the info and link. Certainly one of the best FAQ's I've seen in quite some time with loads of valuable info--especially for beginners/hobbyist.
Of course there is something similar at most of the major silicon manufacturers websites. One of my favorites is National:

 http://www.national.com/analog/training#overview