Every year Google creates a summary Zeitgeist feature to sum up the year in search data, showing what has been the most popular among its users. Now, it’s rolling out Top Charts , a new monthly series of lists similar to that year-end feature, available on Google Trends as of today. It’s built on Google’s Knowledge Graph, and provides a representation of the actual things people are interested in, rather than just keywords alone.

Rando only launched in March but the anti-social photo-sharing app that deliberately eschews the standard social network clutter of likes and comments and connections – simply letting users share random photos with random strangers and get random snaps in return — has blasted past five million photo shares after a little over two months in the wild. It is now averaging around 200,000 shares per day, says its creator ustwo .

Expect a swathe of consolidation in the European e-learning sector in the coming months.  Edxus Group , a new London-based corporate operating edtech company, is planning to plough in €50-60 million ($64-$77 million) over the next 18 months to develop and acquire European e-learning businesses and build out a single regional player with the scale to compete against U.S. edtech giants, it said today.

Automated Insights , a startup that translates raw data into plain English, is launching a new product could make analytics data a lot more accessible.

We’ve all by now heard about how Yahoo is trying to get some “ cool ” with a supposed $1 billion purchase of hip blogging platform Tumblr , but it may be a moot point if Tumblr’s users fail to stick around post-sale.

Facebook today announced that its new version of Offers with larger images and calls to action are now available on Android. In February, the social network began testing the new layout on desktop with an option to shop immediately or get a reminder before the promotion ends. The interface also lets users decide if and when to share the offer with friends.

Google held a session today at I/O 2013 about how to make money on Android, and in the initial few minutes it shared some updated stats around Google Play revenues and how those are progressing. Not surprisingly, the big growth is coming with in-app purchases, though Google’s recently launched subscription model is also making headway. Google said that its in-app revenues through Play are up 700 percent since the same time last year, which is reflected in the top apps as listed by highest grossing titles in the Play rankings.

One year to the day of the troubled Facebook IPO , the climate for tech IPOs in the public markets is significantly less stormy, especially for companies in the enterprise space. Today, not one but two are debuting on New York stock exchanges. Business intelligence provider Tableau Software , trading as “DATA”, is one of the more highly anticipated tech IPOs of the year, and so far it has not disappointed.

AirWatch , the startup that helps businesses manage security and more on employees’ mobile devices, is today announcing that it has raised another $25 million, led by Accel with participation also from Insight Venture Partners.

Google I/O , the company’s sixth annual developer conference, got officially underway in San Francisco on Wednesday, and it was an eventful day. It took the company every minute of its epic three-hour keynote to unfurl a laundry list of announcements and updates, seemingly across every product category in its arsenal — from Android, Chrome and Search to Maps, Google+ and Hangouts — each with a fresh coat of paint.