XXX wanna be friends with you. Y/N?

A technical progress favored us with a great invention of social networks. Everything started from conferences, and then were e-mails, pagers, now we settled down to epoch of friends nets.
The first net I’m registered couple years ago was LinkedIn. This service is mainly used for creating and managing business relationships. When you apply for a new job, for many it companies it is enough to give a link to your profile. Managers or HRs usually have connections with your previous work place and can get a request from some of your coworkers. Head hunters may find you there and give an interesting proposal. I would recommend every high skilled professional to have a CV profile in there, as it has about 17 million participants.
Another pretty useful and developed platform with the same functions is Xing, I was involved there by one friend, emigrated to Europe. Interesting characteristics of all emigrants and estranged, once the roots were broken, they do many attempts to stick it back. It’s a human nature to attach to things and people once and forever. Service has 5 million members.
Facebook is something very different from previous two, mainly used for informal communications. It has lot entertaining activities and fun sticky chains. Can be used as dating service, at least it is the only one service, where I was requested for friendship on daily basis with the most friendly in the world Turkish and Arabic men. I see great potential of Facebook, however it is still not popular in Russian area and I have to apply great efforts to involve there at least somebody of my friends. It’s undoubtedly world’s leader among social utilities and has 60 million people in.
Recently I found out that all my friends hang out on odnoklassniki.ru (classmates) and vkontakte.ru (be in contact). Odnoklassniki really caught me on, I found dudes from school, from my city. It’s proved to be really entertaining to find out where fellow travelers have got on the life’s road. However it has lot of bugs, like delay while refreshing your data, clones in communities lists ect., lack of functions besides sending messages and browsing friends pictures it is very popular and has 12 million users.
Vkontakte is Russian analog of facebook. Friendly interface, fast work, various interesting functions, which work properly, makes this service much more attractive then odnoklassniki, and think soon will overshadow it. For the time being they involved 8 million Russian speaking participants.
Informal social portals are great area for advertisement. All-sufficient person will not search for the lost friends in the networks. Those involved have some personal troubles yet, energetic hunger. Troubled people are easily fall to manipulations. Think, it is good luck for advertisers, if they succeeded to publish their commercials on such sites. Advertisement is one big manipulation, and it must have great success on so much emotionally visited pages.