Searching for widget is easy now. Some of them are listed here downwards. Widget4u also listed some here on the tab left side. If there's some suggestion for me to review the widget and + it into this blog dont forget to write a comment.
MyBlogLog’s Recent Readers – this widget can easily be called a hit amongst blog owners; its popularity even managed to convince Yahoo into buying MyBlogLog. The widget lets you see the avatars of recent visitors to your blog, provided they’re also members of MyBlogLog.
Mashable – get the latest social networking news from this very site.
Preview Anywhere – see a live preview of outgoing links in a small popup which activates on mouseover. Some find this annoying, while others might find it useful.
Twitter Badge – if your life is so interesting that everyone must know what you’re up to all the time, then a Twitter badge is the ideal counterpart to your blog. It’ll proudly displays your recent tweets.
Digg News – display the latest Digg links on your blog. Themeable and fully customizable.
FEEDJIT – real time traffic data directly in your blog’s sidebar.
LineBuzz – inline comments for your blog. Very handy for blogs with frequent lively discussions.
Flixn – display a stream directly from your webcam, so your blog visitors can always see what you’re up to.
3Jam – lets your visitors send messages to your mobile phone, without them knowing your phone number.
Jaxtr – with Jaxtr, your visitors can actually call you to your mobile phone; again, your number stays private.
LinkedInABox – show off your LinkedIn profile. Perfect for personal blogs.
Box Widget – enable visitors to use box.net’s online storage directly on your web site.
Price of gas – displaying gas prices on your blog might seem unnecessary to some, but it’s cool if you have a traffic/travel related blog.
iBegin Weather Widget – Display weather information in your sidebar. Just like with Price of Gas, works great with travel-related blogs.
ClockLink – display time in various time zones with these nifty Flash clocks.
Film Loops – display the latest loops from your FilmLoops account.
Bitty Browser – embed a cute, fully functional mini web browser to your blog.
Leafletter – create a mini website and embed it into your blog.
WikiSeek – search Wikipedia with this simple widget.
FeedCount – show off the number of visitors to your blog with this handy little button.
Technorati Link Count – display the number of links your website has from one of the biggest blog authorities – Technorati.
MyPageRank – another good way to show how “big” your blog is is to show off your Google PageRank.
CheckPageRank – in addition to showing your PageRank, this widget also shows your Alexa ranking.
BlinkxIt – embed a link to related videos directly into your website.
Skype button – display your Skype online/offline status on your blog.
RockYou Horoscope – not something I would personally use, but some people are into horoscope. Hell, most people are into horoscope. Anyway, this widget shows horoscope (doh!) and does it in a nicely designed colorful box.