Methodology
It is a free social networking and micro-blogging that allows users to update their blogs up to 140 characters long via Twitter web site, short messaging, instant messaging or a third-party application which uses Twitterrific or the Facebook.
Updates are displayed on the user’s profile page and instantly are delivered to other user’s profile, but the users have the control over his blog, because the user can restrict the delivery to those in his or her circle of friends.
The good thing about this is that the user will be updated through Twitter’s website or through instant messaging, SMS, RSS or even through email. But there are only four gateway numbers can be used for SMS, these are the numbers of United States, Canada, India and United Kingdom.
Source: www.twitter.com
Flicker
It is the almost certainly the best photo management and sharing application in the world. It enables users to upload as many photos and videos they want. They can also share it with other users that have signed up in the said website. The user can also give his friends, family and other contacts to organize his stuff, not just by adding comments or tags on his photos and videos.
IM (YM, IMEEM etc.)
This site allows different kind of people, but of course only to those persons that have email addresses, to communicate with other people through chat or even video calls using their webcams and allows having a chat conference thru their conference chatrooms. Also IM’s allows users to share photos, files, videos, voice recordings so that it would be easier for them to communicate with other people. Instant messaging also allows users to send SMS to cellphones as txt messages if the one that he’s communicating to is not using a computer or maybe in the road, he or she could just encode the number of that person then type his or her message in the message box, and then there the message will be sent.


