This ever-growing curated collection of interface patterns on CodePen is a reliable source of inspiration.
Infinite Scrolling, Pagination Or “Load More” Buttons? Usability Findings In eCommerce – Smashing Magazine
A good side-by-side comparison of loading techniques, with some clear advice. But pay attention to this note:
While the debate over “Load more” versus infinite scrolling versus pagination has been debated for years, the product loading method shouldn’t be the first thing that most e-commerce vendors spend their development resources on.
I’ve been thinking about this a lot lately; alternate ways of paginating through the past e.g. by day instead of by arbitrary amount.