Fonts that look handwritten make a product or brand feel more human, which makes us like it more. The opposite happens if a product is very functional (e.g. scissors).
+1 that handwriting fonts aid in attentions. Handwriting fonts with arrows as "callouts" are good too. Also, comics / cartoons can be effective. PS: Your newsletter is great. I would appreciate a follow on twitter if you're down ⇨ http://twitter.com/rowemore … cheers!
Thomas, thanks for great tips!