What books should I read or website should I visit to learn about this stuff?

I live on a hill, the town itself is quite hilly. I don't know if my bike is geared efficiently enough to handle the elevation. All I know is that my knees hurt from my Sunday ride. Thirty miles of rolling hills and flats bliss but the last mile was up the steep hill home. I have a FSA triple 52-42-30 and Ultegra 12-25 cassette.