Check out some of the latest makeuseof discoveries. All listed websites are FREE (or come with a decent free account option). No trials or buy-to-use craplets. For even more app reviews subscribe to makeuseof directory.

(1) BookGlutton – Read books online, digitally annotate them and interact with other readers in real-time. You can also leave and reply to comments within the text and bookmark your place in the book. Read more: BookGlutton – Cool Way To Read Books On The Web.

(2) CheckUserNames – This tool lets you type in any username and check its availability across 45 social networking sites. Read more: CheckUserNames – Social Media Username Checker.

(3) Loopt – Downloadable mobile client that allows you to transform your mobile phone into a social compass. You can see where your friends and share your current location with them. Read more: Loopt – See Where Your Friends Are From iPhone or Mobile.

(4) Postal Price Calculator – A tool from US Postal Service that lets you find out cost of sending parcels, letter or postcard to any location worldwide. Read more: Postage Price Calculator.

(5) SoundZit – Search, listen and embed music tracks online. The site is build on YouTube and lists over 300 millions of songs. Read more: SoundZit – Listen And Embed Music Online.

These are just half of the websites that we discovered in the last 3-4 days. If you want us to send you daily round-up of all cool websites we come across leave your email here. Or follow us via RSS feed.