What is the most annoying thing in the network communication? That was the question of some survey concerning social networking and Internet security on the whole. In accordance with this survey most people suppose that spam is growing and nothing can stop all these innumerate irritating e-mails. To be precise, the growth of e-mail spam achieved 90 billion per day as for 2007.

Spam has various definitions depending on the source. One of the most wide-spread definitions is UCE which means "unsolicited commercial e-mail". Of course, everyone has already received a lot of such messages, offering them to join some profitable business, lose weight and look gorgeous or just travel abroad. And everything seems to be not so bad at a glance. It is just an advertisement. That's all. Yes, it is irritating, but nothing more. Well, it will be splendid if all the above mentioned things were the only troubles caused by e-mail spam. As a rule, such messages may contain viruses.

There are various methods for refusing spam. All of them have its advantages and drawbacks. Thus, spam blocking and e-mail filters which are based on the content of the message or detecting keywords such as "earn" or "discount" are very popular now. Such methods can be really appropriate for checking the e-mail that an individual gets. But still it has its weakness. For example, it may detect the wrong keyword just using several syllables and in this case, "cialis" may turn into "specialist" for the filter. In other words, if there is some word which seems to be not appropriate for spam blocking, you may not receive an important letter. On the other hand, some of such Internet security programs are free download. So, choose and try them in work! And receive only good news!