Short links

Before, it was important for Twitter because of the limited text. Later, Twitter began to cut back, and then stopped taking links into account at all. Therefore, the need for such services for the service of Twitter has disappeared, but short links are always better, because they are useful.

Plus Twiiter-limiting message, which does not allow pouring water, and write only on the case. Only here the link at the end of the message consumed a lot of space. For example, share.skype.com/sites/en/2009/09/a_new_chapter.html does not fit into the limit.
Then came up with link reduction services, ex. bit.ly/12CQqE

But Twitter built in its wretchedness and the question was lifted. YouTube built its abbreviated and now can a brother not a long URL, but a neat link. But the services have remained and they like to use to place shortened links on forums, social networks ...

Caution

There have been cases of breaking short link services. Result - viruses. What are short links? This is essentially a redirect. I press on bit.ly/12CQqE, and actually I get to share.skype.com/sites/en/2009/09/a_new_chapter.html. If hackers cracked bit.ly, then they can redirect my link anywhere. Therefore, it is more convenient to forward such services as Google and Twitter, they can be trusted.

1. openlinkprofiler.org - OpenLinkProfiler - Analysis of new backlinks (back links) is free.

Services Links reduction

1. clck.ru - Clicker - Links shortener
2. vk.com/cc/ - Shorten the links - For registered users only VK.
3. is.gd - is.gd - Detailed statistics.
4. tinyurl.com - Tiny URL
5. bit.do - Bit.do - Detailed statistics, the ability to specify your name for the link.
6. cutt.us - CUTTUS - It is possible to set the name of the link yourself.
7. link.ac - Link.Ac
8. u.to - u.to - Viewing statistics will require registration.