Fifty startups launched on-stage at the TechCrunch50 conference over the last few days. Despite a few duds, most presenters had cool ideas, solid products, or both. VentureBeat writer Kim-Mai Cutler and I watched all of the presentations, and now we’ve put together a list of our five favorite companies.
Whuffie Bank is a non-profit that want to build a virtual currency based on reputation that can be redeemed for goods and services.
There are a billion ways to share photos online, and even to gather all the photos taken at special events in one place. But more and more people are taking photos on their smartphones, and now Clixtr has created an iPhone app that offers similar features for iPhone photos. The company launched today at the TechCrunch50 conference in San Francisco.
Stribe builds social networks for publishers who wants to keep users glued to their site. The company launched at the TechCrunch50 conference today in San Francisco.
Radiusly, a company that launched at the TechCrunch50 conference in San Francisco today, says it wants to be the new site for a company’s social media interactions.
is a social network that facilitates real-time, public conversations. The company launched at the TechCrunch50 conference today in San Francisco.
As people use more communication tools on the web, there are a number of startups trying to help them manage all the options at their disposal from a single location. The latest is Threadsy, which just launched at the TechCrunch50 conference in San Francisco.
Twitter chief operations officer Dick Costolo spoke briefly about his new position at the fast-growing microblogging network during the TechCrunch50 trade show in San Francisco.
Lots of people complain about Evite, the top site for online event invitations. A startup called Cocodot says it can shake up the market with a fancier service aimed at women, which connects online and physical invitations.
Hark! is browsing platform that allows many people to surf the web together. The company launched at the TechCrunch50 conference in San Francisco today.
Crowd Fusion, the web publishing startup from Weblogs co-creator Brian Alvey that’s been in stealth mode, demonstrated its suite of publishing tools on-stage at the TechCrunch50 conference in San Francisco today.
AnyClip, a startup that launched at the TechCrunch50 conference in San Francisco today, is a service that purports to let you find any moment from any film every made.
The web changes with incredible speed. Hence all the hype around the real-time web, i.e. new content. A startup called Perpetually is looking at the opposite side of the changing web — websites where old content disappears, or which disappear themselves.
Insttant, a startup that launched the TechCrunch50 trade show in San Francisco, creates a real-time snapshot of news by aggregating tweets, shared links and photos.
A startup called Thoora wants to become the site where readers find every article and comment around the news stories that interest them, in real time.
Facebook bolstered its position as the world’s leading social network, surpassing the 300 million user mark and becoming cash-flow positive ahead of schedule.
Entrepreneurs and venture capitalists complain frequently that few companies can have initial public offerings (IPOs) anymore, because the legal difficulties and compliance costs are so high. A startup called Sprowtt says many more companies will now be able to sell shares to the public, and to do so much earlier in their life, because its websites automates the process. The company launched today at the TechCrunch50 conference in San Francisco.
Glide Health, which launched at the TechCrunch50 conference in San Francisco today, offers a set of web, desktop and mobile applications to allow healthcare professionals and patients to access their personal data in medical emergencies.
A new startup called BreakThrough says it wants to use the web to help people overcome the barriers to getting psychiatric help.
LearnVest, which launched today at the TechCrunch50 conference in San Francisco, is a personal finace tool that walks users through checklists and helps them tackle big financial goals like budgeting for a wedding or applying for a student loan.
CrowdFlower, a company which launched today at the TechCrunch50 conference in San Francisco, is a service that helps businesses find workers for menial tasks and rate them based on performance.
To reclaim some of its old glory and keep up with social networking startups, AOL is opening up its AIM instant messaging service with the latest versions of its chat software and mobile applications today.
A new startup called Trollim wants to help talented programmers stand out from the wannabes who jostle for jobs with them. The site uses a combination of tests and battles with other coders.
Affective Interfaces demonstrated some cool new technology today that uses emotion sensing software with webcam footage. The company launched today at the TechCrunch50 conference in San Francisco.
CitySourced is a mobile app that lets residents report problems to their local government and hold them accountable for it.
ClientShow is a new startup that wants to help graphic designers communicate and collaborate with their clients, by giving them a design-centric forum that will work onsite at clients’ offices. The company launched today at the TechCrunch50 conference in San Francisco.
Metricly pulls together analytics from services across the web and puts them in a single place for small businesses and startups. The company launched today at the TechCrunch50 conference in San Francisco.
When you’re running a startup, you don’t have a lot of money to spend on services. That’s why startups often trade services between each other, or look for bartering opportunities. A company called TheSwop.com, which debuted its product at the TechCrunch50 event in San Francisco today, has created a site that formalizes that favor-trading process.
Mota is a new company that wants to fix the famous “lemons” problem by restoring trust to the used car market.
Everyone complains about the horrible process for hiring online. There’s often a flood of irrelevant, useless applications, especially with the dire job market spurring some people to apply for any and all positions. There are a number of startups trying to solve this problem, and now a new one called Localbacon is throwing its hat into the ring.
Refmob is a new company that encourages word-of-mouth referrals by handing users a slice of the revenue they generate for businesses by recommending them.
Yext is trying to make online local advertising more effective by focusing on phone calls instead of clicks. The company debuted its system today at the TechCrunch50 trade show in San Francisco.
Updated with correction
iMo uses your iPhone’s accelerometer to turn it into joystick for flying aircraft or racing cars in casual games.
With a new product called Google Fast Flip demonstrated to a live audience at the TechCrunch50 conference in San Francisco, Google says it’s combining the speed and smoothness of the magazine-reading experience with the breadth of information that you can find on the web. The service is launching right now in Google’s experimental Labs Area.
Turn your Facebook album into a Wheaties box or Armani ad.
RackUp is a startup that says it can bring the excitement of live shopping (think of the crowds outside a store before a big sale) into the online world.
HealthyWage, one of the startups that debuted onstage today at the TechCrunch50 conference in San Francisco, is a startup that incentivizes users to stay fit by paying them a reward.