I like having half a dozen frequently used sites on my start page, as a better bookmark solution. Don't want a bar taking up screen real estate, but if I can cl

I like having half a dozen frequently used sites on my start page, as a better bookmark solution. Don't want a bar taking up screen real estate, but if I can click into my issue tracker, doc repo, email, etc from a new tab, that works great and then it goes away once I've loaded the site. Would be great if I could just have iframes of some of them (like the page listing all the timezones for my team so I know what time it is everywhere).