Twitpic is growing, it has already become the largest portal as Twitter for pictures and is introducing more functions and features. The latest to come forth is Photo Tagging, a feature that has been long available at other social networking sites like Facebook. There is no point in comparing the two here as they both cater to different versions of online social networking.
Twitpic has been upfront with updates and photo tagging is its next step after it launched the feature that let users categorize photos as per events. Again, the reason why there is a need to have such features is because users want more than just a portal or application to share pictures, they are looking for more functions, better organizing so that it is easier to share, discover and readily available to search. Which makes the introduction of the feature ever justified.
