Yahoo users will soon be required to create a Yahoo email address to access Yahoo products. The company will soon no longer let users access its services with their Facebook or Google accounts. Yahoo is rolling out this new rule across its properties slowly. Yahoo Sports Tourney Pick'Em, the company's NCAA college basketball tournament, will be the first service affected by the change. Yahoo Fantasy Sports and Flickr will follow.

Ifbyphone, a voice-based marketing automation service company, has appointed Steve Collins to its Board of Directors. Collins previously served as the CFO of email marketing firm ExactTarget.

Facebook has updated its Paper iPhone app, making it easier to share Facebook posts via Facebook messages, text messages, or email. Prior to this update, the app only allowed users to update with friends only. Additional features that come with the new update include the ability to turn off sound effects, as well as the option to create stories in languages that use multi-stage input such as Chinese, Japanese, and Korean.

Contatta has released a new infographic highlighting the cost of email in the workplace. According to the graphic, time spent on email costs North American businesses of almost $2 trillion a year. The graphic culls data from the US Bureau of Labor, McKinsey Global Institute and the Radicati Group, and reveals that on average, workers spend 13 hours of their workweek reading and answering email. In addition, the graphic reveals that businesses pay more than $15K per employee to use email.

Last night Twitter sent out emails to many users telling them that their accounts may have been compromised and that they should change their passwords. It turns out that the company sent the email by mistake. The social network has apologized for the mishap. "Twitter believes that your account may have been compromised by a website or service not associated with Twitter," read the alarming email.

BlackBerry has addressed the issues that wiped out email access for its users for about five hours today. The outage affected Blackberry users in Canada and Asia Pacific. "Our technical team has identified the potential cause of the issue and has reduced its impact on customers' service," Lisette Kwong, senior manager of corporate communications, at RIM told CBC.

Kelly Blazek, the founder of the online service Cleveland Job Bank, has apologized for a mean email she sent to a job-seeker via LinkedIn. The email, entitled 'Poor Judgment on your Job-seeking Strategy' dismissed the job candidate and told her not to try to make connections with people she didn't know. Diana Mekota shared the rejection email and it went viral, which prompted Blazek's apology.

Sherpaa, a Web service sold to corporations as an employee medical benefit, is offering employers the chance to give employees a low level health benefit -- the ability to email doctors for advice. For about $50 a month per employee, members can send emails or call Sherpaa's three full-time doctors around the clock to get advice about health issues. The company also has a network of 100 medical specialists available for in-person visits. The doctors manning email and the phones will refer patients that need in-person visits to those in the network of doctors.

Simon & Schuster has launched a new website and daily email focused on book reviews. The site is called Off the Shelf and will feature publisher-agnostic book reviews which will be updated daily. The site will also feature an email newsletter, and readers can subscribe to receive these reviews as a daily update.

Nigeria may have a reputation for sending a lot of spam, but the country is also the home to many legitimate email marketers. To serve these businesses, MailCliq.com recently launched the country's first email marketing platform, giving marketers the tools to send trackable email campaigns and newsletters. "MailCliq was born out of the frustration that comes with paying for expensive email campaign services," explained Idowu Akinrelere, the company's co-founder in an interview with in an interview with HumanIPO. "No doubt Mailchimp and Campaign Monitor are great email campaign services but the price gets up to hundreds of dollars for only …