Interesting article from Predictive Intent on the effectiveness of carousels (those hero content areas which rotate images).
"Last year we carried out an A/B split test with a client using a vertical scroller, displaying 3 products at any one time on the left-hand sidebar, whilst requesting 12 suggestions in total – enough for three “scrolls”. Clickthrough to a suggestion was just 1.38%, generating 1.6% of their revenue.
In the version without a scroller, which requested and displayed only 4 products, clickthrough to suggestions shot up to 6.54% – an increase of 374%! Direct revenue attributable to this block also rose to 4.8%."