"Flickr4Twitter is the easiest way to upload your photos to Flickr and post them to Twitter. Flickr4Twitter was designed to let you upload your photos from Tweetie 2 to Flickr, but you can also post through the web with Flickr4Twitter.com."
This video brings home the point that most people are oblivious to the social networking tools I use. In this video, NYU journalism student Alana Taylor took it to the streets asking students and other passersby whether they use Facebook, Flickr and Twitter.
What's a hashtag?
Hashtags are a community-driven convention for adding additional context and metadata to your tweets. They're like tags on Flickr, only added inline to your posts. Hashtags can be created by anyone simply by prefixing a word with a hash symbol: #myhashtag.
Through the use of twemes, we can all view what people are talking about across the whole Twitter universe. In some sense, this can be thought of as an adhoc chatroom. We also pull in recent public photos from Flickr and public bookmarks from Del.icio.us.