Load Your Core JS Library through a CDN

CDN - What and Why

CDN = Content Delivery Network

See: 3 reasons why you should let Google host jQuery for you (or any other CDN)

• Decreased latency
• Increased Parallelism
• Better Caching

CDNs to Use

See: Using jQuery with a CDN

But not just jQuery! MaxCDN, Google, Microsoft, and cdnjs.com host several JS libraries through their CDNs:

• Google Hosted Libraries
• MaxCDN is used for several Open Source projects
• Microsoft Ajax Content Delivery Network
• cdnjs.com
• For a fuller list see: Free Open Source CDNs (That You'll Actually Use)