What is the Digital-Age Equivalent of Ditch Digging?

Imagine that stock markets continue to fall and as a result the United States enters a double-dip recession. Unemployment spikes to near 20%.  During the Great Depression the Federal government formed the Works Progress Administration (WPA) to provide jobs to millions of unskilled workers.  The WPA employed people in a variety of capacities but the vast majority worked in construction fields.  If a similar employment program were to be launched today, workers could still be employed in construction.  The United States certainly has a need for infrastructure upgrades.  But given that we are in the digital age, what would be the current equivalent of ditch digging? Are there productive technological tasks that could be performed by unskilled, low-skilled labor that only involved minimal training?  Given the greater skills and knowledge required to use technology are there any viable options for a digital mass employment program?