Found an incredibly useful little website - www.p3d.in - which can host and display fully interactive .obj files. What's more, you can view the wireframes too, so you can see all our dodgy modelling in full detail!
It's still in the beta stage, so it's not perfect. There appears to be some missing faces, but that could be down to bad modelling instead of the website. It doesn't seem to agree with n-gons very well. Still, it's pretty damn snazzy. You can even embed it in the blog. Certainly quicker than uploading turnarounds, you can view it on the website to see it in greater detail HERE
Also, you need to have a half decent graphics card, chrome/firefox and openGL enabled! Google it if you don't know what that means.
Left mouse rotates around, it feels like it "grabs" the model and rotates around that point. Middle mouse zooms in, and Right mouse for pan. Enjoy!