A development framework for Ethereum: http://truffleframework.com/docs
Ethereum C++ implementation https://github.com/ethereum/cpp-ethereum/blob/develop/README.md
Python-based EPM (Ethereum Package Manager) for Serpent 2 and Solidity contract deployment using YAML for package definitions.
Chocolatey package to install the C++ Ethereum client: AlethZero
Ethereum Tokens and Data Viewer. API, Widgets for your tokens
Decenture Documentation - http://git.io/decenturedocs
Got an issue with your wallet, exchange or a transaction? Check on https://myetherwallet.github.io/knowledge-base, or use a search engine. If you can't find an answer, then get help here, and give a donation to your helper, especially if they're not an Ethereum employee.