Tagging your work is the most effective way to make your work visible. The portfolio drop-down menu has uses tags for each category: Online, News, Sports, Business, Features, Infographics, Illustration and Video. At the minimum, your work should be tagged for one of these categories.
It's also useful to tag your work by topic and by the name of your publication.
For online work, you should also be able to add a link to the work in the description of your uploaded jpeg.