There's a nice blog post over at Google Blogoscoped with responses to the question: “What are your top tips for dealing with information overflow?”

One of the big take-aways here is that information overload is often self-induced, at least when it comes to RSS and social networks. That said, managing email inbox load is a perpetual challenge for many, and the rise of RSS and social networks is partially due to the desire to keep in touch, but not via emai.

Some quick additional ideas:

A blog post by Arrington over at TechCrunch calls attention to the usefulness of Google's freshness filter for restricting results to recent, or older, content.

Filtering Google Results by Freshness

One of the commenters offers a 24 hours filtered google search provider for installation into your browser search box.

The site's mission is to share the current state of dramatically increased informational throughput and facilitate the next generation of human cognitive augmentation.

A core feature of the site is a directory of tools and tips, ranging from basic internet information consumption 101 to the development of the next generation of personal information management applications.