1.   Both are what are known as denial of service attacks because they prevent the targeted site from serving its customers.

2.   For instance, they organize virtual sit-ins, which can paralyze a targeted site by flooding it with requests for information.

3.   In addition to damaging commerce at the targeted sites, they began slowing traffic throughout the Internet.

4.   So far the bombing campaign, after disabling Bosnian Serb air defenses, has targeted sites related to Serbian gun emplacements around Sarajevo, many of which remain unscathed.

5.   The targeted sites were knocked off line for a few hours, long enough to make the point that hackers still rule the Internet.

6.   The targeted sites on the list would hit hard in the East.

7.   The trick is to make sure the ads reach people who are interested in the brand by running them on highly targeted sites, he said.

8.   Under the base closure procedure, the president must either accept or reject the full list of targeted sites.

9.   Under the base-closing procedure, the president must either accept or reject the full list of targeted sites.

10.   Plans also are underway to buy banner ads on targeted Internet commerce sites to alert shoppers to the issue, the McCain campaign statement said.