How valuable is tabbed browsing?

I’ve recently been helping a group of colleagues improve the way they share literature, a combination of social bookmarking (capture and archive) and RSS reader (alerting to new items of interest). Pretty simple until you realise they are all stuck using IE6 and so no tabbed browsing. They all like the idea and the simplicity of the process/workflow but when they realised that the RSS reader was web based they were concerned that the process would not work. Why? Because it meant they had to open yet another instance of IE6, they already had 4 or 5 instance open to do their work, if this was the case then they probably wouldn’t bother. I look at my work desktop and I have IE7, it’s non-standard one of the perks of being in IT, and I realised just how enabling tabbed browsing is. Once you have tabbed browsing you can live within one instance of your browser but more importantly you can configure it with multiple home pages. Now when I open my browser at the start of the day I open all the tools in the enterprise tool set and I’m ready to go. I can sympathise with my colleagues who are already opening 4 or 5 web based applications in different browser instances and here I am suggesting they add a couple more. So I’m adding another tool to the enterprise tool set and that’s a browser that supports tabbed browsing.