
SimilarWeb it’s a great research tool to discover the story behind any website with a single click. SimilarWeb’s insights will help inform competitive analysis and identify growth opportunities online. The data is presented as nice infographic for any website on the web.

Hoverme is a browser plugin that will enhance your social web experience. With Hoverme installed you will be able to view the social web profile for each of your friends simply by mousing over their name in your Twitter stream.

Poyozo gives you your own data back by downloading the information you'rife with simple visualizations that you can use every day.e currently giving to the web on to your own computer. You can opt-in to importing your data from Facebook, Twitter, Foursquare, Last.fm, Google Calendar, any email service, any RSS feed, Flickr, Wesabe, Listit, Skydeck, Dopplr, your Firefox browsing history, the local weather, and your location, allowing you to access all of this personal data as easily as the companies that run these services can.

With their Browser plugin, Vanityvid lets your profile pic come alive. Wherever your profile pic shows (social networks, online communities, blog comments, etc.), people will also be able to see you move and hear you talking, and get a better feeling of who you are and what you're like.

Glydo is an associative content discovery service, that discovers web content relevant to you and what you are interested in right now. To use Glydo, you'll need to download a browser addon for Firefox, which provides context sensitive and personalized recommendations while you browse the web.

MailBrowser is a Gmail Plugin that helps you easily manage your contacts and attachments.

With Toolmeet you can find out who is visiting a website and in which domain are your Facebook friends, and reach the sites where they're browsing with a click. This application gives the possibility of discovering new sites and talk with people who have similar interests.

KwiClick adds another dimension to the browser by extracting and presenting content within an innovative contextual window; always there when you need it. KwiClick retrieves information from a variety of sources or content types including search engines, videos, images, shopping and reference sites. It detects embedded content from rich media providers on any webpage, and provides tools for further interaction. This can include sharing on social networks, sending to friends, viewing comments, and finding additional related information.

Gliider is a digital file that lets you hold on to all of the interesting stuff you come across when you're researching and planning a trip. Find a cool hotel you don't want to forget about? See a great restaurant you want to try? No matter what website you're on, just highlight whatever you want with your mouse and drag it into your Gliider. Photos, text, whatever!

Speedtile is an online bookmarking service where you can organize and manage your bookmarks in a visual manner. Using the firefox plugin you don't have to return to Speedtile you have to bookmark a website.

Simple point & click enrichment of your blog posts (and emails). In real-time, while you type Zemanta suggest tags, links, photos, and related articles.

The Web Genome Project is a way to visually represent not only the intention of the Web as a living organism, but also a means of seeing its relevance to your own purpose and values.

Plista is a service for personalized user-experience. Download the plugin to discover new relevant content on the sites you already use.

Grazeit is a browser add-on that suggests related content on any page you visit. This content is shared by anyone who wants to spread links where it matters. Why limit the sharing to social networks when you can share anywhere?

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Twitter lines shows your friend's time line Twitter on your browser tool bar (as like as electric bulletin board). it's also possible to update your status and add/remove favorites.

WebMynd makes Google better by personalizing it with the information sources that you most value. You can embed different search tools, search your WebMynd browsing history and your most frequently visited sites. Some people call the WebMynd browsing history a DVR for the web - it saves and records the pages you see online so you can find what you have seen before faster:

Search Cloudlet - a Firefox add-on which adds tag clouds to a traditional Google and Yahoo interface and helps users navigate through search results in more efficient way.

Voice-it is plugins that allows you to record voice messages from the user and archive it as mp3 attachments on SugarCRM,or send the mp3 attachments by email.

Juice is an intelligent discovery engine that integrates seamlessly with your browser. Highlight and move a chunk of text, and Juice directly delivers a set of rich, relevant content to you.

MashLogic is a Firefox extension that works quietly under the hood to enrich web pages with the kind of information and media you care about. It's respectful of your privacy, and very simple to use.

With HeadUp, you can discover meaningful information about the things that matter to you as you browse the web. Get an intelligent browser add-on and enjoy the best of the web - Free.

Reframeit is a browser extension that lets you comment right next to any text or image that you find on the web.

Zotero is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources. It lives right where you do your work - in the web browser itself.

Smushit is a service that goes beyond the limitations of Photoshop, Fireworks & Co. It uses image format specific non-lossy image optimization tools to squeeze the last bytes out of your images - without changing their look or visual quality. You'll get a report of how many bytes you can save by optimizing your images and all the changed images as a single zip for download.

Zeadoo is your personal homepage for searching, bookmarking and sharing websites with friends. The site is designed for anyone who wants a simple, customizable page that they can access with one click from anywhere in the world.

Monkiri is a user friendly Firefox/IE addon that enables a web user to capture and share interesting web pages or part of a web page with others. Monkiri lets you grab any part of the web page and instantly publish it either on your Monikri blog, or send it to Blogger/Wordpress blogs.

OutWit Hub contains dozens of recognition and extraction features to ease your Web searches and organize your collections. Automatically browse through pages, collect and format the information you seek, display full screen slideshows on any topic in a single click... and find your golden needle in the Web haystack.

BuddyPress is essentially a set of WordPress MU specific plugins. Each plugin adds a distinct feature (or component) to BuddyPress and only handles functionality for that specific component (for example, private messaging). BuddyPress also has a core plugin that all other plugins require, it contains shared functions and performs the basic modifications to the WordPress MU interface.

Comment every site, every blog, comment everything You think that deserves a comment. Just type in the page You want to comment and write Your pain down. For an easy comment tracking use RSS or the Firefox extension.

Take your web Services and social networks with you, anywhere on the web. This site-centric model limits how and where consumers can engage, interact with, and enjoy their favorite Web sites and services, including how much time they spend doing various tasks.

Dexrex is the free add-on for archiving IM & SMS messages. Sign in with your screen name, download the plugin, and start saving your world one message at a time.

Mento is for sharing links with friends: Smarter than email overload, more permanent than IM, and always just one click away. Mento is a button for your browser and a place for saving your shared links. Send links to any email address, Facebook friends and Twitter contacts, and use groups and tags for exchanging links with more people.

Use iterasi's toolbar to save web pages and add them to your iterasi account. Add notes, folders and tags to your Notarized pages so you can easily find them again. All your Notarized pages are kept in one place.

Xoopit's innovations in search engine technologies allow to deliver the next generation of search, productivity, and social media applications to Internet users. Xoopit helps you take the effort out of organizing and retrieving your digital life, wherever it is. There's too much stuff out there and it's impossible to keep your fingers around it.

Jonngel is a multiple site search - plugin. It's letting you search through general info (Google), blogs, reference, videos, images, social media and more - All in one go.

The Yahoo! Shortcuts powered Wordpress plugin is an easy way for webmasters to enrich blog posts with great content (maps, finance quotes, news headlines, Flickr photos, and much more.)