Magnetic blocks hold together, so kid-built structures don't easily collapse, while magnetic puzzles and play sets can be used in the backseat of the car without pieces falling this way and that ...

Scientists at the Max-Planck-Institute for Intelligent Systems (MPI-IS) have developed hexagon-shaped robotic components, called modules, that can be snapped together LEGO-style into high-speed ...

TL;DR: As of August 1, get a 60-piece set of Tytan™ Magnetic Building Tiles for $33.99, an 80-piece set for $41.99, or a 100-piece set for $39.99 — 100 pieces at 33% off.

A guide to open-ended building toys from a veteran of physical and digital toy development, and including Keva planks, Clixo Rainbow Pack, National Geographic marble run, and MathLink Cubes.

Pixio is available in 16 colors, and for $19, you can get 50 blocks in six of these colors. If you want all 16 colors, you can get a set of 800 blocks for $149.