This porosity could be in the form of micro porosity (think pumice) or macro porosity (think large voids and a rubble pile structure) or probably even both.

FORBES: New Observations Signal NASA Mission's Target Asteroid Is Sample-Friendly Rubble Pile

Sony's NEX-3 and NEX-5 cameras certainly boast the features to get any camera nerd excited -- interchangeable lenses in a form factor smaller than Micro Four Thirds but with an image sensor 50% bigger -- but the big question remaining is how they'll actually hold up in use.

ENGADGET: Sony's NEX-3, NEX-5 interchangeable lens cameras get reviewed

Micropayments are the foundation and most widespread form of microfinance, though micro-lending and other financial services are growing, too.

FORBES: How Tech Can Help Financial Firms Reach The Underbanked

The micro approach, which usually takes the form of stock-picking, is to scour one or more of those categories for individual bargains.

ECONOMIST: A survey of fund management

Some 40% smaller than the relatively new Micro-SIM standard, there has been a lot of debate around this new form factor.

FORBES: Apple's Nano-SIM Victory Solves a Problem That Doesn't Exist

The winning proposal will form the basis for a mixed-income rental building in the Kips Bay neighborhood of Manhattan consisting of micro-units.

CNN: Tiny homes hit the big city

Acquired by Velocity Micro in 2007, Overdrive PC has always represented the pinnacle of desktop performance, pillared by Hyperclocking, a trademarked form of overclocking that yields faster clock speeds and unparalleled reliability at lower thermals than traditional methods.

ENGADGET: Velocity Micro relaunches Overdrive gaming desktop: overclocked to 4.6GHz, with trio of GeForce graphics