Articles and information related to Bitcoin, exchanges, mining, merchant tools, cryptography, online commerce, alternative curencies, commodities, digital goods. TAYPE International provides a number of free, open source projects asa service to the Bitcoin community. In addition to the eventual mainstream adoption of bitcoin as a universally-accepted means of global exchange, we are particularly interested in the ancillary uses of the Bitcoin's core technology, including but not limited to: alternative branches of the blockchain for use in voting/elections, alternatives domain name systems, etc.
MtGox Trade API .NET
This project is a free, open source wrapper for the TradeHill Trading API. It is designed to make the TradeHill Trading API easy to integrate into your .NET software solutions. It is written in C# and can be used without charge in your personal software development projects.
GitHub (Git):
CodePlex (TFS, Mercurial, SVN):

Build Bitcoin QT Client GUI on Ubuntu 11.10 AMD64 (Oneiric Ocelot)
You can follow these instructions to build the latest and greatest version of the bitcoin-qt client on your Ubuntu 11.10 (Oneiric Ocelot) machine.
Install required prerequisites:
sudo apt-get install bitcoind qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev libssl-dev libd++-dev libminiupnpc-dev
Check the latest bitcoin source code out from github:
git clone https://github.com/bitcoin/bitcoin
Now build the target:
cd bitcoin qmake USE_DBUS=1 USE_UPNP=0 make
Once the build completes you can run the client:
./bitcoin-qt