From there, Hartz went on to found Xoom an online to offline money transfer service that lets people send money overseas.
It also invested in Babbaco, an online subscription service for offline kids activities.
Airbnb also Tuesday launched an offline and small business service called Local Lounges, a partnership with local cafes in San Francisco.
Popular subscription-based blogging service TypePad went offline on Friday, delaying updates to thousands of sites.
He's CEO of ShopRunner, a subsidiary of e-tail-services company GSI Commerce that recently launched a Prime-like service for a collection of offline retailers.
Many people are familiar with Anonymous, the hacker collective that is known for its DDOS, or distributed denial of service, attacks that take websites offline, and backed the 2011 Occupy movement and WikiLeaks' Julian Assange.
Along with millions of other out-of-date and unsecured PCs strung together by the Internet--what Corman calls "the leper colony"--those machines represent a combined mass of computing power responsible for most of the Net's spam e-mails, much of its click fraud, and the vicious "denial of service" attacks that can knock sites offline and even destroy online businesses altogether.
Botnets are often used to mount distributed denial of service (DDoS) attacks - forcing websites offline - to run spyware or to send out spam emails.
In addition, TXU said it could bring back into service several natural gas-fired power plants that are now offline.
The second case is one where you have some sort of offline process and you are thinking of moving to an Internet-based service.
After all, discount brokerages, including Schwab, have been around offline for years, but have not stopped Merrill and other full-service firms from earning a good living.
Other offline retailers are following suit, implementing mobile point of sale devices to improve customer service.
In January 2009, for example, Ma.gnolia, a bookmark storage service (similar to Yahoo's Delicious.com), went offline after its databases crashed.
Google previously had offline mode for some of its services with Google Gears, but it retired that service a while back.
FORBES: Google Takes Gmail, Calendar, Docs Offline: A Big Plus For Chromebook
PayPal this morning announced deals with offline payment systems operators Verifone and Equinox Payments that will make the eBay-owned service a more viable alternative for physical world payments.
The news coincided with the launch of Sky Go Extra - a service allowing users to download movies and TV shows so they can be watched offline.
When Chatroulette went offline for a week last month, many expected a new version that would clean up the service.
FORBES: Chatroulette Starts Blurring Video As A Filter For Objectionable Content
So far, traditional full-service brokers have resisted using the Internet in any way that would cannibalise their existing offline brokerage business.
It is getting harder to find good excuses for being offline: this week the European Union allowed airlines to offer in-flight mobile-phone service, and several carriers have Wi-Fi.
Cybersecurity research firm Damballa on Monday revealed a new collection of malware-infected computers, mostly located in China, that are set to target servers with Distributed Denial of Service (DDOS) attacks, overwhelming victim sites with fraudulent traffic and taking them offline.
On Monday evening, Tehran time, hackers began using "distributed denial of service" attacks to flood Iranian government Web sites with requests for information that took the sites offline.
The UK Serious Organised Crime agency took its website offline for several hours on 20 June after it appeared to be a victim of a distributed denial of service (DDoS) attack.
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