I'm still getting a blank page on this one: (5.13 Contract tutorials)
http://guide.ethereum.org/contract_tutorials.html

I think the "sections" name is a bad reference / doesn't exist in wiki.

Here is the affected file: https://github.com/ethereum/frontier-guide/blob/master/contract_tutorials.md

There are no detailed instructions for nvidia based mining. Here's what I had to do to get it working. In addition to installing cuda from https://developer.nvidia.com/cuda-downloads (as is stated in the current guide).

The following packages are required:

sudo apt-get install nvidia-346 nvidia-346-uvm nvidia-opencl-dev nvidia-modprobe

replace 346 with your appropriate version number; check which version to install with sudo ubuntu-drivers devices.

We need a single line (or the closest possible) for the latest stable geth binary on Linux and Mac.

Currently, the best we have is:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/cubedro/frontier.ethereum.org/master/bin/install.rb)"

Which is bad because it uses ruby, which isn't default in most systems and the main url could be made much better (github cubedro??)

On http://ethereum.gitbooks.io/frontier-guide/content/gpu.html, under "Using ethminer with geth" it tells me to use:

geth --rpccorsdomain localhost 2>> geth.log &

I found that that didn't work unless I also added the --rpc flag. In fact the --rpc flag was all I needed to provide.