Under Google, the Blogger platform has undergone major improvements. Now, more than ever developers around the world have committed and are developing plugins and widgets for the blogging community on Blogger.com. This includes countless sites dedicated to templates and themes. Here are some good plugins and widgets for Blogger.com/BlogSpot.com powered blog that can spice up your blog to enhance reader experience.
- Top Commentators Widget by BloggerPlugins: This excellent plugin has two versions. One for blogs having small number of comments and the second variant for blogs receiving lots of comments.
- Google Translate Widget by BlogSpotTutorial: Step by step tutorial on how to install Google Translate Widget in the form of nations’ flags
- Translation Widget by BloggerPlugins: This one click install widget add multiple language translation support to your blogger blog.
- Recent Post Widget by BloggerPlugins: This is highly customizable widget. You can set number of posts to display, post summary and it's length.
- Recent Comments Widget by BloggerPlugins: A highly customizable widget. You can set the number of comments to display, author name, date and size of comment. You can also use CSS to gel it with your theme.
- U Comment I Follow Widget by BloggerPlugins: If you want to spread some link love then install this widget to make your comments 'do-follow'.
- Label Cloud Plugin by phydeaux3: This is one of the most popular label cloud generation plugin for blogger. You can customize various options after installing this plugin.
- Archive Calendar Widget by PurpleMoggy: Very impressive archive calendar widget with customizable options.
- Archive Calendar Widget by phydeaux3: Another very popular archive calendar widget. Highly customizable for better browsing experience for the readers.
- Recent Posts Widget by Feed2JS: This excellent plugin makes plugin installation and customization very easy. Just fill in the form and click the button to generate widget code.
- Recent Comments Widgets by Blogger-Templates: Just fill in the options in the form and one click widget code generation. Excellent plugin which is highly customizable.
- Picasa Web Albums Slideshow Widget by Blogger Templates Designs: A unique plugin to show photo slideshow from any Picasa account. Ideal for personal blogs, photo blogs and web design blogs.
- Search Form Widget by Blogger Templates Designs: If you want to add site search box in your blog's sidebar, install this plugin.
- Google Talk Widget by Blogger Templates Designs: This plugin adds the Google Talk client to your blog so that your readers can directly converse with you.
- Recent Comments Widget by Blogger Templates Designs: Yet another recent comments widget with customizable options and one-click install.
- Sudoku Game Widget by Blogger Templates Designs: Want to add some interesting puzzle games for your visitors? Then install this plugin to integrate Sudoku puzzle game in your blogger blog.
- Google Translate Mini-Flags Widget by MadToMatoe: Very useful translation plugin powered by 'Google Translate'. One click install with multiple language translation facility.
- Recent Comments Widgets by MadToMatoe: One more recent comments widget for blogger blogs. Again you can customize the number of recent comments to be displayed.
- Reactions Mini-Poll Widget by ThemeLib: Want to host a poll on your blogger blog? Install this plugin and get customizable polls for your readers.
- Alexa Traffic Widget by TechKnowl: Display your Alexa stats with this customizable widget.
- Snow Flakes Widget by TechKnowl: Add a stunning snowfall effect in your blogger template in the festive season.
- Popular Posts Widget by TechKnowl: A very simple popular posts plugin using Yahoo pipes to filter out popular posts on your blog.
- Flash MP3 Player Widget by TechKnowl: This cool plugin allows you to embed flash mp3 player in your blogger blog. The player is very light with custom options.
- Rating Widget by Outbrain: If you want to integrate rating system with your blogger posts, then this excellent plugin is the best choice. It has rating system plus related posts integration in same widget.
- Multi-tab TOC Widget by Beautiful Beta: If you want to display multi-tab table of contents section in your blogger blog, then install this widget. Very popular among blogger users.
- Tab View Widget by Hoctro: The coolest plugin showing tabbed posts with animated post excerpts. A must for your blog's sidebar.
- Random/Rotating Banner Widget by FreeYaSoul: Very useful widget for displaying rotating banners in your blog's header. You can customize and can choose any number of headers.
- Social Bookmarking Widget by Lasvak: This is perhaps the most easily installable bookmarking widget for blogger. Just copy and paste a single line of code in your blogger template and your bookmarking icons are ready.
- PayPal Donation Widgets by Etienne: Integrate different types of PayPal donation widget in your blogger blog with ease.
- Podcasting Plugin by Talkr: If you want to integrate podcasts to your blog, register for this service and get free podcasting plugin for your blogger blog.
- What's Next? Section Widget by eblogtemplates: Integrate a Wordpress style 'What's Next' section below blogger posts with this excellent widget.
- Twitter Profile Widget by BloggerBuster: Add your twitter profile and twitter updates with this useful plugin developed by Amanda Fazani.
- Bookmarking Widget by SocioFluid: One of the best social bookmarking plugin for blogger. Big animated icons with one click installation.
- Related Posts Widget by LinkWithin: LinkWithin is a blog widget that appears under each post, linking to related stories from your blog archive.
- Google Friend Connect by Google: Google Friend Connect instantly awakens and strengthens the community that visits your site by enriching it with social features. It runs across any site that has installed Google Friend Connect. You can join a site, see the other members, play games and more.
- MyBlogLog by Yahoo!: If someone visits your blog that is also a member of MyBlogLog, their avatar and username will appear in the box. You can then click on any person to check out their profile on the service.
- AddThis by AddThis: The popular social bookmarking button is available for Blogger accounts.
- ShareThis by ShareThis: The highly customizable green button that ShareThis is known for can be added to your blog. Choose if you want it for social bookmarking, users emailing your posts and more.
- Mashable Widget by yourminis: Now you too can share the best web-related news with your visitors on your blog with the Mashable widget.
- FeedJIT by FeedJIT: This is an awesome live traffic widget (check on FundooGeek.com home page) displaying information about your visitors with live source links in it. It shows live visitor statistics in real time.
Adapted from the original post by mintBlogger.com.
theFundooGeek recommended reading :

I think you should add nRelate’s Related Content plug-in to this list. I have used this on a number of my WordPress blogs and they recently released a version for Blogger that looks great. You can learn more about the plug-in here:
http://nrelate.com/install/install-for-blogger/
Full disclosure: I am friends with the founders so I am a little biased in this recommendation but honestly, it is a great plug-in that has gotten me some solid results. Thank you!
Your comment is awaiting moderation.
Keep up the fantastic work , I read few articles on this site and I conceive that your site is very interesting and has lots of fantastic info .
After study many of the web sites for your internet site now, i really appreciate your strategy for blogging. I bookmarked it to my bookmark site list and will be checking back soon.