Let your visitors know about news and events on your website as often as possible. You need to keep your website up-to-date so that your visitors will get used to visiting your pages regularly. You can use RSS feeds to deliver new articles directly to your readers.
Treat your "Visitor's notice" page like it is your shop window. Show what you have to offer. This is the right place for presenting items like current news, discounts or promotions. Whatever you think will attract people to your site, put it here.