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Let's say you have two hosts, somewhere out on the Internet: Maybe dedicated servers, maybe Amazon EC2 or Rackspace instances, maybe a mix of the above. Now assume it's your job to provide secure, encrypted connectivity between two services running on those hosts. If those services do not use an encrypted protocol by themselves - such as non-SSL capable SMTP mail servers - then the standard answer has always been: "Use stunnel or OpenVPN!". While both of those are good, cross-platform solutions which can forward unsecure traffic over an encrypted tunnel, I believe that they come not only with administrative overhead, but also introduce a significant performance hit. I believe that there are now solutions that are easier to use, more flexible and most importantly, deliver much better performance. In this article, I will compare stunnel performance  characteristics with vCider's virtual private network solution (sign up for use with up to 8 nodes is free). You will see that vCider not only offers more flexibility and is easier to use, but also provides significantly better network performance and reduced CPU load. For my test, I have created two Ubuntu instances on Rackspace. Please note that both stunnel as well as vCider can work across network and cloud provider boundaries.

The Cryoscope shows the user exactly what to expect outside by haptically exhibiting exactly how cold or warm it is to be outside. The user simply touches an aluminum cube that has been heated or cooled to the appropriate temperature. The unit fetches weather data from the internet, and translates it to the cube physically, pumping heat in or out of the cube.

The primary role that productivity plays in the network economy is to disperse technologies. A technical advance cannot leverage future opportunities if it is hoarded by a few. Increased productivity lowers the cost of acquisition of knowledge, techniques, or artifacts, allowing more people to have them. When transistors were expensive they were rare, and thus the opportunities built upon them were rare. As the productivity curve kicked in, transistors eventually became so cheap and omnipresent that anyone could explore their opportunities. When ball bearings were dear, opportunities sired by them were dear. As communication becomes everywhere dirt cheap and ubiquitous, the opportunities it kindles will likewise become unlimited.

Having at least six months of expenses provides financial stability, helps you avoid debt with high interest payments, and lowers stress levels. We have a full year of expenses put aside in liquid cash, and it lets me sleep well at night. Emergency funds can actually have a better return on investment than what you see on a bank account. But that doesn't mean I shouldn't still maximize my interest earned, especially as cash is an asset class where you can increase your return without having to take on additional risk (if you stay FDIC-insured or equivalent).

Do you know what is the most common question that I get every day on social media, forums or email? "How to get insights about my Google Analytics data?" People approach me saying that they have a Google Analytics account for years, but they look only at page views or the number of visitors they get.