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.
Flickr Flash Photo Stream Badge – display images from your Flickr profile with a handy Flash photo stream.
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.
Daily Painters – display paintings from famous painters on your blog.
WhoLinked – show your visitors which sites have recently linked to your web site. Works with all major blog platforms.
Criteo AutoRoll – displays links to blogs similar to your blog.
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.
del.icio.us Tagometer – display how many times have del.icio.us users saved your page.
del.icio.us Linkrolls – this badge shows your latest bookmarks from del.icio.us.
Timelines – need to create a timeline? Seek no further. This widget makes it really easy.
PollDaddy – PollDaddy lets you create beautiful polls in no time, and display them at your blog.
Vizu – another poll-making widget, compatible with all major blog platforms.
AnswerTips – display definitions from Answers.com for various terms on your blog. The definitions are shown in bubbles which are activated on doubleclick.
AnswerBoxes – give your visitors a chance to enter a term themselves, and get a definition from Answers.com
Now Playing – if you got to share your current playlist contents with the world, Sigamp will do the trick. Works with most popular music players, including Foobar, Winamp, iTunes and others.
BuzzBoost – display headlines from your RSS feed on any website.
LibraryThing – show off the latest books you’ve been reading.
Plaxo Address Book – let your most faithful visitors access their address books direclty from your site.
AuctionAds – a widget that displays auctioned items on eBay, and gives you a percentage of the price paid when sometimes buys an item.
aStore – similar to AuctionAds, only for Amazon. Create a mini-store on your site and receive profit when someone buys an item through your store.
Plazes – show your current location on a Plazes map.
Stockalicious – track your portfolio with this widget, and share it with others. Let everyone know how much money you’ve lost.
Yahoo! For Good – create a charity badge and ask for donations for a worthy cause.
Giftspace – your friends never know what to buy you for birthday? Let them know what you really want with this nifty widget.
MixMap – see where are the visitors to your MySpace profile from on a map.
Google Map Widget – display a searchable Google Map on your website.
Google Video Search – add a video search form and selected videos to your web site.
Odeo player – display an Odeo player for and podcast right there in your sidebar.