You can also treat Keepamrk as a News Reader (Feeds/Rss/Atom). You can add some channels to subscribe, and Keepmark will automatically download lastest news from them. You can for example create separate repository for such news, and the most valuable articles you can convert to PDF files and move them to your other repositories.
All downloaded news are automatically tagged, and saved as HTML files, to let you access them even when you are offline. You can use Keepmark search engine to easly search among them.