What software do you use to keep up to date on literature, and if Google Scholar, how do you avoid information overload?
Some options, most of which are actually not software:

Subscribe to alerts for new papers published in your favorite journals via email or rss feed. (Be selective enough to not become inundated.)

Try a recommendation engine (and pay with your privacy) like Mendeley.

Subscribe to newsletters of relevant research associations and networks.

Ask colleagues what they've found interesting recently, or more specifically what literature they recommend on a given topic.