一个LINUX软件包下载站。

http://pkgs.org/

其实下载也是从其它地址下的，不过整合了搜索，就方便些。

pkgs.org - Linux Software Catalog and Packages Search

The pkgs.org is created to provide you with the simplest method of searching and downloading the newest versions of the best Linux software - without the usual excessive popups or spyware.

Also use it to find alternatives to commercial packages with expensive licensing fees and complicated restrictions.

Features

• Search for RPM, DEB, TGZ, TXZ packages from well-known repositories of the Archlinux, Fedora, CentOS, RHEL, Scientific Linux, Debian, Ubuntu, openSUSE, Mandriva, Mageia and Slackware distributions;
• Packages search by name, filename, summary, description, requires, provides, files and directories;
• Powerful packages browser (summary, description, files, requires, provides, changelog, etc.);
• Install Howtos for all available repositories;
• Free Software Catalog;
• RSS & Twitter;
• Fast servers to make your packages search as fast as possible;
• All packages are downloaded only from the official repositories!