If you are anything like us, you may find it a bit frustrating having to constantly change the size of the columns in Finder in OS X on your Mac. You would think that Apple would have built in automatic sizing or resizing based on the length of the file names in the directory, but no. So here is how to resize to make the default column size (width) for your finder wider (or, for that matter, narrower).

Starting with OS X 10.7, Apple caused your Mac to start making “Mobile Backups” of “Local Snapshots” to the MobileBackups directory (technically .MobileBackups) on your hard drive. It does this whenever your Mac is away from your Time Machine backup drive, such as your Time Capsule.

We recently posted an article on how to find (and remove) all of the Facebook groups to which you belong. In response, one of our readers asked us how to find a list of all of the pages you have liked on Facebook. So, here you go.

If you are on LinkedIn and want people to be able to send invitations to connect with you without them having to know your email address, you may be frustrated at trying to figure out how to remove that restriction. Here are step-by-step instructions, with pictures.

How do you force OS X to use the app that you want to open different files? For example, you may have two or three different word processing type program, but you really want to use Preview to open document attachments that people send you in email. Your Mac may default to an app pre-defined by OS X, or you may have a program that is checked as the ‘default’ in the program settings. So how do you change that behavior?

It’s fairly trivial to make a playlist on YouTube, whether of your own or others’ videos. And of course, you can make a custom channel URL. But what if you want to make a custom playlist URL – i.e. a custom URL for one of your playlists?

If you sell products online, and if you have a mailing list, you may find that you want to add products to your Paypal account for your mailing list API (such as the Aweber API) to use. For example, when you hook the Aweber API into Paypal, you can choose which mailing list the buyer of a given product gets signed up for by which product they have purchased.

If you haven’t heard about the Zooka wireless (bluetooth) speaker bar (the speakers are at either end of a single bar), it’s a wireless bluetooth speaker for your iPhone or Android phone, or iPad or other tablet (or, even, your laptop). But the Zooka wireless bar instructions leave a lot to be desired in terms of explaining how to hook up your Zooka bluetooth speakers, so here are clearer instructions.

Canvas fingerprinting has been on the news a lot lately, described as the alternative to Internet tracking cookies that is impossible to turn off. But it’s actually not that hard to block canvas fingerprinting.

So let’s say that you tried the new Kindle Unlimited service, and now you want to cancel it. Just how do you unsubscribe and cancel Kindle Unlimited on Amazon? If you search Amazon, they provide this spectacularly unhelpful guidance: “You may cancel your subscription at any time by visiting your account and adjusting your settings.”

Did you know that with the most recent versions of iOS you can easily block any number from being able to call or text your iPhone? This is a particularly nice feature to use with those pesky telemarketers.

If you are trying to find your mail files on your Mac or Macbook, and wondering “Where are the mail files on a Mac”, and maybe even feeling a little bit dumb because you can’t find your mail files, well, that’s because in later versions of OS X, mail files are hidden! Apparently you’re not supposed to find your mail files on your Macbook or Mac! But we are going to tell you where your mail files are hidden because, well, that’s just how we roll.

Launch, the new book from massively successful launch entrepreneur Jeff Walker, answers the questions “How to launch a startup” in the Internet world, as well as how to launch an app, how to launch a website, or even generally how to launch a product (after all, an app or a website is, by many measures, a product). It is equally applicable if you are looking to reboot a business, product, or service.

Behavioral advertising, also known as behavioral targeting or behavioral marketing, is when an advertiser or advertising server hooks into the data that is stored by your browser or app, to serve you interested based ads. These things tell the advertisers and networks things such as what searches you recently conducted, what sites you visited, etc.. Behavioral advertising is increasingly being used by advertisers and their publishers (Facebook just announced they are using behavioral advertising), and consumers are becoming increasingly concerned for their privacy. So how can you opt-out of behavioral advertising?

I was trying to free up space and I unchecked all the music on my iPhone, synced, and there are still 113 songs on my phone! What gives? How do I get all of the music off my iPhone? Why isn’t iTunes doing what I tell it to? Here is the answer.