What??

I'm trying to add del.icio.us as an rss feed to my blog but when I went to the website there wasn't an "RSS" button in the URL bar. I'm sure there was one when I went to the site at uni..?? Is there a setting to show RSS feeds? I guess I'll have to try and find other ones.. do the feeds we put on our blog have to relate to this subject? I hope I find some answers soon!