Dwolla. Mt Gox - Bitcoin Exchange Mega Chart.
Cloudcomputing. Linux_Downloads - VirtualBox. Note: The package architecture has to match the Linux kernel architecture, that is, if you are running a 64-bit kernel, install the appropriate AMD64 package (it does not matter if you have an Intel or an AMD CPU).
Mixed installations (e.g. Debian/Lenny ships an AMD64 kernel with 32-bit packages) are not supported. To install VirtualBox anyway you need to setup a 64-bit chroot environment. The VirtualBox base package binaries are released under the terms of the GPL version 2.