The lack of ability to look at documentation/stackoverflow/code examples in a browser while simultaneously coding out said example and making the changes I need

The lack of ability to look at documentation/stackoverflow/code examples in a browser while simultaneously coding out said example and making the changes I need would severely limit my productivity. "Just copy and paste!" you may say... Sure, that'll work. Only, wait, I forgot what that one line meant, is it needed? What did they say about changing this piece of code that was "really important?" Crap, back to the browser. Let's switch apps again. Crap, the page in the browser is having to reload because I had too many tabs open and memory got low, now I have to wait for it to reload. Where was I on the page? Cause when it reloaded the page, it put me back at the top. Wait, that wasn't the tab I wanted, it's that other tab. Great! It has to reload now too! I typically work with a single external monitor connected to my Macbook and use the Macbook for holding my mail client, chat and a browser while my Terminal's and IDE are on the external monitor. This works best for me. Now that spaces and expose are so tied together, working with even just one screen is much nicer. I have toyed with the idea of just using a single external monitor and use spaces extensively. Just a swipe and I'm at a new space. This is much faster and nicer than changing apps on iOS. I think it's a neat trial idea, but for long term productivity, it certainly is more of a "hipster factor" than useful.