Find most popular widget for your wordpress blog

Widget is a fancy word for tools or content that you can add, arrange, and remove from the sidebar(s) of your blog. Widgets create it easy to customize the content of your sidebar(s). Widget appears at appearance. Here are some most popular and also necessary wordpress widgets;

Widget Name	Summary
Top Posts & Pages	Top Posts & Pages Widget allows you to display up to ten of your most popular posts as of the last 48 hours or your most liked posts.
About.me	About.me widget allows you to pull in your About.me profile information, and a small screenshot of it.
Akismet	Akismet Widget will display the number of spam comments caught over the life of your blog.
Archives	Archives Widget organizes your previously published posts by month. This can be handy for readers who want to browse your older content.
Author Grid	Author Grid Widget is a great way to showcase your blog’s authors in your sidebar. The widget displays the avatars of all your blog’s authors, which link to a list of posts they’ve each written.
Authors	Authors Widget is a great way to showcase your blog’s authors in your sidebar. It can display the names or avatars of all your blog’s authors, links to a list of all their former posts, as well as links to posts they’ve recently written.
BandPage	If you are a BandPage user this widget will allow you to easily embed BandPage Extensions into your WordPress blog. This will make your BandPage music, photos, videos, event listing and bio.
Blog Stats	Blog Stats Widget displays the total number of views to your blog (not including your own views). It’s a nice way of showing off how popular your blog is
Follow	Blogs I Follow Widget allow you to list some of the blogs that you are following via the WordPress Reader in your sidebar.
Box.net	Box.net file sharing widget gives you a great looking way to share files with your readers or buddies.
Calendar	Calendar Widget is a simple, easy-to-use widget that displays links to your posts by date.
Categories	Categories Widget organizes your posts by category in your blog’s sidebar. This can be handy for readers who want to find more of your posts about certain topics.
Custom Menu	Custom Menu Widget allows you to display pages, categories, and custom links in your blog’s sidebar. To use it, you first need to create a custom menu.
Delicious	If you have an account with the social bookmarking service delicious, you can display your latest bookmarks in your sidebar with the aptly titled delicious widget. This is a nice way of sharing your bookmarks with your blog visitors.
Flickr	Flickr widget makes it easy to show thumbnails of your latest Flickr photos in your sidebar. Your photos must be viewable by the public in order for this feature to work, so be sure to check your Flickr privacy settings before activating this widget.
Follow Blog	Follow Blog Widget enables your readers sign up to receive your posts via email
Gallery	Gallery Widget provides you with a simple way to display a photo gallery or slideshow in your blog’s sidebar.
GoodReads	GoodReads provides a service that allows you to share your reading lists with friends, and the GoodReads widget at WordPress blog lets you feature some of the books you’ve listed.
Gravatar Profile	Gravatar profile widget allows you to pull in your Gravatar image along with some of your Gravatar profile data.
Image	Image Widget provides you with a simple way to display an image in your blog’s sidebar.
Instagram	Instagram widget allows you to display your latest Instagram photos in your site’s sidebar.
Links	Links Widget displays a list of links (also known as a blogroll) in your sidebar.
Meta	Meta Widget is a simple tool that makes it easy to log in and out of your blog and access your dashboard and RSS feeds from your sidebar.
Milestone	Milestone Widget provides you with a simple way to create a countdown to a given date theme.
My Community	My Community Widget allows you to show users who have interacted with your WordPress.com site.
Pages	Pages Widget displays your blog’s pages in your sidebar. This can make it easier for your readers to navigate around your blog.
Posts I Like	Posts I Like Widget allows you to list the most recent posts that you have ‘Liked’ on WordPress blog so that you can help your readers discover more good posts.
Readmill	Readmill is the best book reader for phones and tablets. With this widget you can enable users to send a book to their device with one click.
Recent Comments	Recent Comments Widget is a sidebar tool that displays the most recent comments readers have left on your blog.
Recent Posts	Recent Posts Widget displays your most recent posts in your sidebar, making it easy for your readers to see what’s new on your blog.
RSS Links	RSS Links Widget allows you to add links to your blog’s post and comment RSS feeds in your sidebar. This makes it easy for your readers to stay updated when you post new content or receive new comments.
RSS	RSS Widget displays posts from any RSS feed. You might find this handy if you want to show off one of your other blogs, or one of your favorite blogs, in your sidebar.
Search	Search Widget adds a search box to your blog sidebar, allowing readers to easily search your site for posts and pages you’ve written in the past.
Tag Cloud	Tag Cloud Widget shows a list of all the tags you’ve assigned to your posts. The most common tags will be displayed in the largest font size. It can display up to 45 of your most popular tags.
Text	Text Widget allows you to add text or HTML to your sidebar. It’s the most popular widget because of its power and flexibility. You can use a text widget to display text, links, images, HTML, or a combination of these.
Top Clicks	Top Clicks Widget show which of your external links (links pointing to other websites) in your posts are most popular with your readers. You can access this information without sharing it on your blog by going to Stats tab on the WordPress blog homepage.
Top Rated	Top Rated Widget, you can show which of your pages, posts, and/or comments have the highest ratings. You need to have ratings enabled on your blog for this feature to work. The widget displays up to 20 items for each type of rating, with selectors for day, week, and month
Twitter Timeline	Twitter Timeline Widget Twitter offers embeddable timelines that allow you to display any public Twitter feed onto your blog.
Upcoming Events	Upcoming Events is a widget and a shortcode. It allows you to use an iCalendar link to display a list of events on your WordPress blog

Source: Popular widget for wordprss blog