Summary Box: StumbleUpon has more ways to explore

RENOVATIONS: StumbleUpon is adding more avenues to meander through its online content recommendation service. It’s letting its 20 million users be more specific about their interests so they won’t have to wait as long for the service’s technology to figure it out.

DETAILS: More than 250 brands, actors and sports figures have set up channels under StumbleUpon’s new format. Users, for instance, can now tell StumbleUpon to feed them information about specific brands, such as Audi, instead of a general topic such as cars.

NEW LOOK: To herald the shift, StumbleUpon redesigned its logo. It’s now reddish-orange instead of blue and green.