Digital printing has garnered significant attention in recent years as a pathway to ultra-low-cost electronic systems. In particular, given the low viscosity requirements of inkjet printing, this has been a leading candidate technology for realization of allprinted electronic devices. We have developed inkjet-compatible materials for a full range of electronic materials, including printed conductors for interconnects and antennae, dielectrics for capacitors and transistors, and semiconductors for active devices. Using various combinations of nanoengineered particles and organic materials, we have realized fully printed transistors, diodes, and passive components with performance approaching the requirements of various applications including displays, sensors, and low-cost RFID tags. We review our materials technology, report on advanced devices fabricated using these materials, and discuss the implications of the same on the viability of fully-printed circuits.