A robots.txt file is the gatekeeper for your web site or blog that either allows or disallows search engine spiders from indexing your web site. If you don’t have a robots.txt file the spiders and bots make an assumption about how they should access your web site. We want to send clear instructions as to what we want spiders and bots to do.

Assuming you want maximum traffic to your web site you’ll want to allow all spiders and bots access to crawl and index everything on your web site. Sometimes the names of spiders and bots change, so it’s a good idea to allow them all. Some instructions will have a bunch of lines for a robots.txt file listing all the spiders and bots they know of, but again we just want to cover all of them without having to keep modifying the robots.txt file in the future.

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According to a new report from the National Intelligence Council, robots will be able to replace people in a series of menial jobs by the year 2025. The report dictates that an influx of robo-workers will "disrupt unskilled labor markets," with robots taking jobs currently performed by migrant workers, high school students and the like.

Additionally, the report states that emerging technologies could be used to assist humans to perform tasks such as caring for the elderly. The report offers no word as to when robots will be able to run for congress or write blog posts about tech news items.

Never to be outdone by their human counterparts, robots have begun cross-promoting. November 20th will see the release of the Wall-E edition of iRobot’s Roomba 530. This special edition Roomba is just like the original 530 only it features a likeness to our favorite computer animated robot. As mentioned, they go on sale in Japan on November 20th for ¥,84,500. No word as of yet on an American release.

Internet/Cable channel Current TV has released a trailer for it’s upcoming documentary "Japan: Robot Nation." The trailer is certainly intriguing, tying the evolution of robots to the evolution of Japanese culture. It also has some pretty nifty music. The program doesn’t air until December 10 at 10PM EST on Current TV. Set your DVRs now. Click below to play the trailer.

It may not look like the cutting-edge robots we have been seeing, but this Swami can recognize people’s faces (there are cameras in the eyes) and can also carry on conversations. Reminiscent of the fortune-telling machines, this $75,000 model is equipped with 30 motors in the facial region, so its expressions can unnerve the unsuspecting guest – or you if you forgot you have a “human” head in your house!