Exporting to Facebook and Flickr
If you are a social media user, you may use one or both of these two popular networks. Aperture has built-in sharing options for both of these services. You can share your images directly to Flickr and Facebook from the share menu in the Aperture toolbar. This allows you to create a new album (or "Photo Set", to use Flickr's terminology) and set the size of the images you want to export, as well as set some privacy options.
However, there are a few issues with using these sharing functions within Aperture. For a start, the options are very limited. You only have limited control over how images are scaled, and you cannot add a watermark. On Facebook, you can't send media to a Facebook page. But if you're using Facebook as a photographer, you are probably using a Facebook page rather than your personal profile. On Flickr, you can't add images to groups during the upload process, and you can't add additional metadata other than what you already have included...