This might be a bit difficult. As I recall, there are about 20000 software packages available for the RPi.
To browse through the list, install the Synaptic package manager.
sudo apt-get install synaptic
and run Synaptic
It will take a while for Synaptic to load the list and become responsive, so be patient at the beginning.
Also, note that Linux software is not downloaded from a link. To install a package called xxx use the command
sudo apt-get install xxx
or you can select the package in Synaptic and mark it for installation.