If you're looking for reasons to try out DuckDuckGo and haven't quite got around to it, perhaps this blog post might give you the push you need. Here are a few things that you can do on DDG that you can't do on Google - or if you can, it's more difficult.
Using the ! search option
I can search different resources while I'm on DDG, which obviously I can' t do in Google, Simply using the ! or 'bang' command, I can tell DDG to run a search on a different search engine or site. So for example a search for !googleuk search_term will search on the Google UK site for me. Why would I want to do that? Simply because Google then doesn't know who I am, so I don't get results that are tainted by personalisation. Alternatively, if I wanted to search say, Wikipedia, rather than fuss around with site: the way that I have to with Google, I can simply do !w search_term and get to exactly what I need.
This doesn't work with every single tool that's out there, but a search for Cheatsheet Google gives me an entire list of the basic commands that I can do on that search engine. Looks a bit like this:
Up or down?
You probably won't need this one very often, but it's useful to have, and besides, it does bright up a blog posting! If you want to see what the value of colours are, simply type in color codes and feast your eyes.
This is an oddity, and I have no idea why you can do it, but you can. If you have a bunch of text and you want to go from upper to lower case, type or paste it into the search box, with lowercase in front of it. You'll then a box with your text all in lower case.
(No, it doesn't work the other way around though - how mad is that?)
Create a QR code
I know everyone seems to hate QR codes, but they do have a value now and then. Simply type qr before a URL and get a QR code for that site.
Expand a shortened URL
Short URLs from sites like bit.ly can be really useful, but the problem is that you don't know where they are taking you until you're there. DDG allows you to expand the URL to see exactly what it is without taking you anywhere at all.
Create strong passwords
Simply tell DDG how long you want the password to be, and it will create it for you.
(Yes you can get it to create weak passwords by simply using password 8 weak, but not sure why you'd want to!)
So there you go - a few fun and useful things that you can do on DuckDuckGo that you can't do on Google.