The Best of the Web - Open Source

In this day and age you don't get owt for nowt right? Wrong!

The open source web community produces a whole host of software for you and me to download and install to our computers absolutely free of charge.

Here's my pick of the bunch, these are programmes I regularly use as alternatives to their often inferior paid-for peers:

Web Broswer
Firefox - Quite simply the best internet browser out there.

Email Client
Thunderbird - Brought to you by Mozilla, this Outlook alternative has all the features you'll ever need.

FTP
FileZilla - Straight-forward no-nonsense ftp client.

Database
MySQL - (My Ess Que El) The world's most popular open source database.