They can be annoying & distracting; resulting in reduced flow, however, according to a report by e-consultancy banner ads can actually be used to improve brand awareness andbuild upon positive connotations of the brand in the banner.

As a marketeer I’ve never really considered banners with the limited budget available to me, choosing to spend it on paid search instead, but this is quite an interesting discovery and definitely something worth looking into in the future for building the brands that I work with.