Squareleaf is a free online virtual sticky note. It is a simple and intuitive white board with all the Sticky notes you will ever need. This application can be used to store all the important and day-to-day information like schedules, phone numbers, addresses, to-do lists and important notes.

W3C Mobile Checker lets you check your website for mobile friendliness by running around 50 different tests.

RoomAtlas is an intriguing web application which enables you to book hotels from an interactive map. Just enter the name of a Country or City, select the appropriate currency (US Dollars or British Pounds) and click the search button. You will be presented with a list of hotels available in that area as an interactive map. Hotels listed are marked in different colors based on their price per night. You can filter the search results by price, check-in, check-out date(s), amenities available in the hotels like swimming pool, restaurant, kids’ activities

Guestlist is a web application which makes online event registration easier. It enables you to sell tickets for your events and manage attendees with an easy to use interface. The attendee and order lists can be printed and exported. You can accept payment for your event’s tickets with your PayPal account.

MooShell is a web based utility which enables you to easily test your MooTools code. You can also write, test and run HTML, CSS and JavaScript code. Optionally you can save your code for further usage and to share with others via a unique URL. It provides you with an update option to create a new version of your existing code. To choose the MooTools version, you can use the settings panel in the sidebar.

CodePad is a simple web based compiler/interpreter, and a collaboration tool. To get started – just paste your code, and CodePad runs it and gives you a tiny URL which can shared with friends via chat or email. This application will be helpful when you have to quickly check code and you don’t have a handy interpreter.

JS Bin is a web application which enables you to edit and test JavaScript and HTML. Once you have finished writing code, you can save it and send the URL to a friend for review or help. Further changes can be made to the code by your peers if required. JS Bin supports syntax coloring and the output of JavaScript and HTML can be viewed in the same window as a seperate tab without having to open a new window or tab in your browser.

JustPaste.it, which allows you to share text with your friends quickly and easily. Just Paste preserves all formatting when you want to copy data from a webpage or document and share it with someone.

Web Shell is a web application based on Python which will allow you to access SSH from any web browser and even your iPhone.

ScreenFix.net is a handy web-resource which helps computer users get the most out of their monitors. It not only allows you to diagnose common problems but also suggests optimal settings and provides quick fixes.

Microsoft has unveiled the first major redesign of MSN in a decade. The new design conforms to modern web design practices and focuses on providing a simple and clutter-free experience.

Listhings is a free online tool for storing your personal notes. It provides you with a canvas to make notes with a drag and drop interface. It can be used to store almost any text – ToDo’s, phone numbers, lists etc. You can create any number of notes and customize their background color. The notes are automatically saved to Listhings database servers. It enables you to resize the notes from the right and bottom edges. To create new notes, just double click anywhere on the screen or click the Add button from upper right corner of the page.

If you are a Trekkie, or simply curious, you must have a chat with Fake Kirk. This Captain Kirk look-alike bot will try to carry on a conversation with you. You will be amazed or disappointed, but you won’t come away without an opinion.

Jotabl is a web application that lets you create Twitter based shout box on your website or blog. Visitors to your website can simply tweet their thoughts using the shout box once they are signed in to Twitter.

SlickPlan is a web-based tool that enables you to create visually pleasing sitemaps and flowchart designs for free. It’s a handy tool for web developers and designers who need to create navigation flowcharts for their clients. Upon creating an account, Slick Plan enables you to organize and save your sitemaps for future reference.