Sharing is caring, and there is probably no better way to share your photographic masterpieces with the world than adding them to the Wikimedia Commons pool. While Wikimedia Commons features its own web-based tool for uploading photos, a dedicated tool like Commonist can come in rather handy when you need to upload multiple photos in one fell swoop.
GNU/Linux has never been short of audio and video players, but they live in a world of multiple codecs, chief culprit amongst them being MP3, AAC, WMA and (Adobe) Flash. I say "culprits" because they are not free and open codecs. They are encumbered by patents; most websites with embedded audio/video use them and most of the people who view them are also using other patented software: Windows. GNU/Linux is a good alternative and all distros come bundled with free and open multimedia alternatives too: Ogg. You would not be surprised that these players can handle Ogg but what if I told you that Mozilla's Firefox browser could not only handle this codec but could be used also to transcode videos to that format? Interested? Read on.