This are stats for OCAL
the things that we need to do. Load js at the end. load facebook js at the end (after images). Add gzip, and add cache.
I don't know about subdomains, but if images are in different subdomain they will be loaded faster (in pararel with other image). So maybe if we create subdomain assets.openclipart.org for folder assets and load layout images from that subdomain, the speed will increase a bit too.