Photos:

Whether it's photos of your team, screenshots of your product, or even funny cartoons, post them online:

4.) Flickr - For any of your images (or even some short videos), flickr is a fantastic sharing site. Key sharing features: tagging, creative commons licensing, slideshow embedding

5.) Facebook - Facebook is an incredibly powerful social network that allows people to share all sorts of content, and photos are among the most popular applications. Facebook now has over 200 million active users, and more than 850 million photos are uploaded every month. Key sharing features: news feed update (when you upload photos, tag people, or people comment on them), tagging (people)