To serve web pages, a web-server needs work with multiple requests i.e. connections. To make the process faster, techniques such as caching and lowering image resolutions can be adopted - however this still stretches the actual reason for which HTTP was created.
SPDY was created and now coming into mainstream use to help reform the original HTTP to be more suited to todays actual use of the protocol. Thus HTTP/2 now contains the ability to compress requests and headers saving on bandwidth, enables multiple multiplxed requests and push scripts/files from the web server before they are actually requested within an existing connection and uses TLS as the encryption mechanism.
This is really good news for existing TCP/IP based systems - the internet is getting a little faster and secure now. With the emerging technologies coming to the economics of commodity technology - protocols themselves are being reinvented and thus an interesting area for protocol innovation.