Yammer rival Tibbr goes all in on mobile with new iOS, Android, & BlackBerry apps

Enterprise social network Tibbr has had a strong emphasis on mobile access for some time but today it has taken another step forward with newly designed apps for iPhone, iPad, Android, and BlackBerry 10.

Yammer executive Dee Anna McPherson jumps on the HootSuite bus as VP of Marketing

HootSuite announced a significant hire this morning: former Yammer vice president of marketing Dee Anna McPherson.

Once king of enterprise software, Lotus Notes is dragging IBM down

IBM purchased high-flying software company Lotus for $3.5 billion in 1995. Its Lotus division still makes money, but it lags far behind the industry in innovation.

NewsGator CEO JB Holston: at the center of the Yammer-Microsoft crosshairs

Swap chairs for a moment.

You’re the chief executive of NewsGator, a key Microsoft partner in enterprise social software. You’ve just been named a Microsoft Globally Managed Partner. And both of your key product lines contain the words “for SharePoint” …

[updated] Yammer & Microsoft: industry reaction now that the deal is done

[ Updated with new comments as they come in ... most recently at 4:01 PM PST, June 27 ]

Note: we’ve added a full interview with NewsGator CEO JB Holston, a Microsoft partner in the enterprise social space, building its …

Original Yammer investor George Zachary speaks out on the Microsoft deal

Microsoft formally announced the acquisition of enterprise social networks provider Yammer for $1.2 billion yesterday.

VentureBeat talked to George Zachary of Charles River Ventures about how the deal happened and what the future might hold for Yammer. Charles Rivers is …

YammerSoft: What the industry thinks of Microsoft’s rumored Yammer buy

Although nothing is certain until cash is in the bank, Microsoft’s $1.2 billion acquisition of Yammer looks pretty much like a done deal. VentureBeat asked some industry analysts and experts what they think this deal will do to Yammer, Microsoft, …

Microsoft said to be buying Yammer

Microsoft is deep into the process of buying business social network provider Yammer, according to internal sources and conversations “overheard at the Creamery,” a cafe near Yammer’s office.

BusinessInsider broke the rumor an hour ago, and Bloomberg said two sources …