When we were working on WebPutty.net, we found headjs (http://headjs.com/ http://headjs.com/) to be very useful for ensuring all other script calls are run outs

When we were working on WebPutty.net, we found headjs (http://headjs.com/ http://headjs.com/) to be very useful for ensuring all other script calls are run outside of the <head> tag. The full library runs 2.7k gzipped, while just the loader is 1.3k and is the only javascript file you need to block on. (The full script includes a modernizer library in addition to the script loading functionality.)