What is RSS format? it is a format dedicated to the exchange of information. When you publish a news in RSS format, it is automatically published in other websites thatt can deal with RSS format (all major portals are), and who you have made a deal with or who are interested in your news. Example: you are a small tourist office of a small comunity, and you are linked with a major travel compny or the national tourist ofice of your contry. get in touch with their webmaster, and ask him to feed their website with you news. When he'll know that you publish in RSS format, he will immediatly understand that it is a 5 second job for him.
then, each time you publish an news, it is published on their website with a link to you.....Do you get it??? a great tool isn't it?