I've never used the small tag before. But I started a new job towards the end of a complete site re-design project and found that this tag is used in a few areas.
Sometimes this isn't an issue but I've noticed that different browsers interpret the <small> tag differently. Sometimes it's legible, sometimes it's too small to read.
The W3C says that the <small> tag renders the text in a small font. That leaves a lot of room for error.
Small tag on W3C
I'm thinking that using the <small> tag isn't such a great idea and that I should probably style these instances with CSS instead. Does anyone have any input on the use of the <small> tag?