Daily Dispatch: Backup online accounts for free; Firefox add-on helps you avoid unsafe products

Combing through hundreds of blog posts and news articles daily, Dirk Klingner, our technology-trend watcher, sifts through the noise to bring you the tech news most important to consumers. If you have a tip on a story you want to share, leave a comment below.

...If you are looking for a simple solution that will let you backup all your online data to a central place effortlessly, check out Backupify.com – this an online service that will fetch your documents, tweets, blogs, pictures, etc. from all your online accounts and will store them to Amazon S3, another cloud based storage service. Alternatively, you may also download these files to your local computer straight from Backupify.

Caveat Emptor Helps You Avoid Recalled Products (Lifehacker)

Firefox only: The next time you're doing a little online shopping, consider downloading the Firefox add-on Caveat Emptor first. It quickly lets you know if the product you're looking at has been recalled or is on a safety watch list.

Amazon to expand online trade-in range (Financial Times)

Amazon, the world's largest online retailer, is planning to start buying more goods back, as well as selling them, by setting up its own online trade-in platform for used consumer electronics.

Fish oil slows burn of genetic fuse in ageing, say scientists (Guardian)

...Although omega-3 fatty acids have powerful anti-inflammatory properties and lower levels of some blood fats, the mechanisms behind these effects are poorly understood. The new research suggests that omega-3 has a direct effect on biological ageing by slowing down the rate at which protective caps on the ends of chromosomes shorten.

The Neural Advantage of Speaking 2 Languages (Scientific American)

The ability to speak a second language isn't the only thing that distinguishes bilingual people from their monolingual counterparts—their brains work differently, too. Research has shown, for instance, that children who know two languages more easily solve problems that involve misleading cues.

Lighter Side: The World's Craziest Construction Tricks! (One Man's Blog)

Click through to see the "Human Nail Gun", the "Tape Measure Ninja" and more.