skywarn® national - 290,000 trained severe weather spotters in local groups around the u.s. providing severe weather reports to the national weather service. find local skywarn groups and info on skywarn training, severe weather info and data. shop the weather store, browse our forums and check out spotters galleries and severe weather videos.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
A pingback is one of four types of linkback methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.