Good news to all who mourn over the "death" of gigapedia. I still mourn from time to time but I have learnt to be a pirate when the time calls for it; torrent. Though so, torrent sites are not very friendly with book searches. The ones we are used to are similar to browsing books in the library but virtual.
I would say this is the closest to gigapedia we ever get.
Upon hitting the URL, you will see the following. Here you have an option to either search for books by keywords or you can browse based on categories. To browse, mouse-over the text Books on the top right corner of the screen and select Browse.
There are many categories of books. Below is what it looks like.
In this example, I selected Baking. Results as following.
To download a book, simply click on the word Download beneath the title of the book. :)