Geek Mac tip : Save a web page as an iBook and read at your leisure

Safari - surf to selected doo-dah

apple + P to bring up print dialog

Choose PDF selector bottom left

Choose Edit Menu

Press the + button

Navigate to Applications and select iTunes - press open

Now when you pick this option your page will be saved as a PDF in the books section of iTunes.

I just saved a few biology papers there and it worked a treat.