Greenlight has proved the catalyst for many Steam improvements, with fresh-faced indie developers driving useful features and functionality. Unfortunately, with anywhere from 20 to 100 games being approved for sale on the digital distributor every few weeks, it's getting harder to find games from these devs in the sea of new releases. This may become less of an issue however with recent changes to the service.
As described in a news post on Steam, Valve has introduced a "Recently Updated" box on the store front page that highlights new, major updates from developers. In fact, it's live now if you'd like to see it for yourself.
Developers will have some control over when and how they appear in this section, though the post doesn't go into much detail. Beyond the front page pull-out, you can hit up a dedicated update section which shows a more verbose list of newly patched titles.
Previously, any sort of update would only appear in that particular game's news feed, unless it was significant enough for Valve to post about it in Steam's main feed. Now indies will stand a better chance of getting eyes on their games, especially those that are being updated regularly with content.