NM. Looks like https://eos.io is back, go there!

DISCLAIMER: This is NOT an official channel for the EOS ICO sale.  I am providing it AS-IS and make no warranty.  Please look at the code yourself and verify it before sending ETH.
USE AT YOUR OWN RISK

EOS.io is (currently) under a DDoS and for those people who are skilled in using a command line client, the recent posts with the contract address/ABI are enough to participate.  However, if you are not skilled in the CLI and would like to use the former "test" interface to interact with the live sale, I have modified that test interface to point to the mainnet contracts. You can host it locally and interact with the ICO through your browser. 

Prereqs:

• git
• someway of hosting a directory as a webpage
• Eth wallet integrated with your browser (MetaMask or Parity for instance)

Setup:

1. fork https://github.com/wanderingbort/eos-token-sale using git
   

> git clone 'https://github.com/wanderingbort/eos-token-sale'

> cd eos-token-sale

1. check out the "feature/main-netify-test-interface" branch
   

> git checkout feature/main-netify-test-interface

1. host the "docs" folder as a webpage (example using python)
   

> cd docs

> python -m SimpleHTTPServer 8000

1. connect to the webpage and watch the ICO!

Final Notes:

I am just trying to help. I will spend a little bit of time today answering PRs and issues on github related to this. Please switch to official channels for the ICO as soon as the DDoS has cleared.