I like libraries and bookstores. I like going to our local Friends of the Library booksales. I like going to garage sales and second-hand stores to dig around for a treasure or two. I don’t generally read books online. However… (I’m bracing myself for the possibility of passionate reactions to this next suggestion):
If you would like to preview (or actually read) a few (thousand) books online, why not hop over to http://www.fullbooks.com/ – it has thousands of full text books.
You might actually like it. I found all kinds of wonderful surprises.