(Reuters) – Workday Inc. has filed confidentially for an initial public offering, several sources told Reuters, putting the Silicon Valley business software company on track for the largest market debut since Facebook Inc.’s problem-ridden May coming-out party chilled demand for U.S. IPOs.

Aviary said it closed a $6 million round of funding from Spark Capital, Bezos Expeditions, and unidentified strategic investors. The New York company, which is developing a photo editing platform, said the platform is used by 8 million people, who have edited 100 million photos in the past 30 days. PRESS RELEASE Aviary’s usage skyrockets, [...]

Workday has raised $250 million from Greylock Partners, New Enterprise Associates, T Rowe Price, Morgan Stanley Investment Management, Janus Capital Group Inc. and Bezos Expeditions, Jeff Bezos’ private investment fund.

An earlier version of this statement contained inaccurate information that was provided to peHUB. According to the VC’s site, “Menlo Ventures leads a $32m Series B investment in Uber, an on-demand car services company that is revolutionizing personal transportation.” An earlier version of this story mis-stated the round and value of the investment.

Workday Inc., a maker of software-as-a-service products for enterprise human resources, payroll and financial management, has raised $85 million in Series F financing. T. Rowe Price, Morgan Stanley Investment Management, Janus Capital Group Inc. and Bezos Expeditions contributed to the round. Workday was formed in 2005, and focuses on a cloud-based alternative for HR software. Allen & Co. acted as financial adviser to Workday for the financing.

Daily deals site Groupon has acquired Pelago, the venture-backed creator of the location-based application Whrrl, the companies announced on their respective blogs. Financial terms of the deal were not released. Pelago’s Whrrl service will be retired at the end of April, the companies said. Pelago was reportedly backed by more than $20 million from Kleiner Perkins Caufield & Byers, T-Venture, Trilogy Equity Partners, Bezos Expeditions, DAG, and Reliance Technology Ventures.

Seattle-based Doxo, which develops secure “digital file cabinet” technology for receiving and organizing bills and other important documents, has closed a $10 million Series B round. Sigma Partners led the round, which included participation from Series A investors Mohr Davidow Ventures and Bezos Expeditions.

Pelago has the distinction of being the first company to raise money in 2008 from the iFund, the Kleiner Perkins fund that backs products that run on the iPhone, iTouch and iPad. What’s remarkable about that is that the Seattle-based company was initially seeded by individual investors in 2006, a year before Apple’s iPhone was [...]

In the late ‘90s, when national healthcare reform was still but a glint in the eye of Illinois state legislator Barack Obama, primary care physician Garrison Bliss was experimenting with his own brand of healthcare reform in Seattle.

Earlier in his career, Bliss had co-founded a practice that had sold to an HMO, which expected its doctors to see so many patients that neither Bliss nor his partners were spending enough time with the individuals they treated, or enjoying their work. Two of those partners left the practice to form MD2, a “concierge” medical practice that eschews health insurance and instead treats wealthy individuals who pay roughly $1,200 per month to receive personalized medical attention at their homes and offices (and private jets).

Bliss didn’t believe in medicine for the rich versus everyone else, but he recognized the general idea’s merit. When the HMO contract expired in 1997, Bliss converted the partners’ old firm, Seattle Medical Associates, into a primary care practice whose patients paid it $65 a month for checkups, vaccinations, as well as care for chronic illnesses and minor fractures and cuts.