Mini-Feed is useful in seeing a quick snapshot on the latest happenings within your network without going to several sites to check.
The ability to supply how you know a person.
Nice applications. Approximately 10% of Facebook applications I’ve tried are interesting and useful while others are not as good.
I think these can be improved
Fixed 600 width and non-resizable
Non-customizable design
No built-in blogging functionality. Blogging can be done with applications such as Live Blog, but we don’t normally depend on addons for such important values like blogs.
Tight security: profile only viewable by friends. How do you determine if a profile is your friend or not just by looking at the screen name which can be different from the real name?
One account can only join no more than 200 groups. Unlimited is preferred.
Orkut
24.6 million users
What I like about it
Simple design, Google philosophy after all
Extensible width
Ad-free
I think these can be improved
Name. Honestly speaking, the Turkish name “Orkut” is very unfamiliar. Just a remark, as the brand name is not supposed to change
Very few, if any, extensions
Yahoo! Mash
What I like about it
Wider width
Larger font
Allows profiles to be updated by friends
Mini-feed is also supplied
I think these can be improved
Check boxes to select friends to add should be provided
More group levels
Informal language. I am especially not easy with the word “fugly”
Profile with non-removable fields such as “What’s most likely playing on my iPod”… Excuse me, can I NOT have an iPod?
MySpace
107 million users. The currently largest site
What I like about it
Integrated all-in-one solution that includes social networking, blogging, mail, favorites, forum, movies, events, media
Comments (1) 
for socially musical networking
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