Need to convert from one thing into another? Such as:
Celsius to Fahrenheit
Currency to currency
Barrels to gallons
Day to seconds
Mph to Kph
and so on and so on... then get thee hence to Metric Conversions which is a very simple straight forward site that does exactly what you would expect. It's a great addition to a quick reference collection.
Create a list. Share it with friends. Let them add to the list. Let others vote up list items. Let someone else share it onto Facebook. That's what you get with Listly. It's got ease and simplicity going for it, but to be honest, I'd prefer to use something like Pearltrees.
If you're worried about the hacks on different services in the recent past, Have I been pwned? is a reputable site that you can put in your email address to see if it's been compromised. If you have, it will tell you where, and you should consider changing your password details if you haven't done so already.
This is a fun little tool. Type in the countries that you want to compare sizes for (including US states) and you get to see them both (in rather abstract form) with one overlaid on the other, with details on which is bigger. The graphic shows this quicker than I can explain:
Free printable papers for the daily use. Lovely idea. Do you need lined paper? Memo paper? Dotted paper? This website has over 40 templates that you can simply download and then print out to use however you want. All free. So if you fancy a quick game of battleships... this is the site to start you off!
Free software to disable touch-pad while typing This is a great little tool - simply install it and never worry about the cursor accidentally moving while you're typing again. I'm always brushing against the touchpad while I type and this is exactly what I was looking for.