Home
Amr Gharbeia's Library tagged → View Popular
onScale solutions
"Scalaris is a transactional data store for online services based on the peer-to-peer principle. It provides self-management and scalability by replicating services among peers. Without system interruption it scales from a few PCs to thousands of servers. Servers can be added or removed on the fly without any service downtime. "
simple private real-time sharing and collaboration by drop.io
Use drop.io to privately share your files and collaborate in real time by web, email, phone, mobile, and more. Create each drop in two clicks and share what you want, how you want, with whom you want.
مشاهد mashahed: Live Coverage: Cairo University Protests, April6th-2009 -- بث مباشر: مظاهرات جامعة القاهرة 6إبريل 2009
Using Scribble
احجب!
موقع احجب هو موقع يقدم خدمة ارسال طلبات الحجب إلى الجهات المسؤولة عن حجب المواقع في الدول العربية بضغطة زر.
موقع احجب هو ملك لشخص واحد تم تأسيسه وإخراجه بهذا الشكل , ولا ينتمي هذا الموقع لأي مؤسسة أو أي شركة عربية.
المصرى اليوم - «حركة الإداريين» تعلن نقابة بديلة يوم ٦ أبريل.. وتطالب بوضع بيانات المشاركين على مدونتها
أعلن فوزى عبدالفتاح، المنسق العام لحركة الدفاع عن حقوق الإداريين، البدء فى تكوين نقابة جديدة للإداريين تهدف للدفاع عن حقوقهم، فيما بدأت حركة الإداريين مرحلة جديدة من النضال الإلكترونى، حيث دشنت الحركة مدونة على الإنترنت على العنوان الإلكترونى:/http://cdwr.wordpress.com
-
أعلن فوزى عبدالفتاح، المنسق العام لحركة الدفاع عن حقوق الإداريين، البدء فى تكوين نقابة جديدة للإداريين تهدف للدفاع عن حقوقهم، فيما بدأت حركة الإداريين مرحلة جديدة من النضال الإلكترونى، حيث دشنت الحركة مدونة على الإنترنت على العنوان الإلكترونى:/http://cdwr.wordpress.com
-
أن الحركة اختارت يوم السبت المقبل لإعلان النقابة نظراً لما يمثله اليوم من دلالة رمزية باعتباره يوم الغضب، موضحاً أن ذلك الإعلان هو جزء من الدلالة الرمزية لغضب الإداريين مما يحدث معهم من تجاهل الحكومة لهم ولمطالبهم، ودعا جموع الإداريين لارتداء الشارات السوداء
- 2 more annotations...
Is There a Reverse Network Effect with Scale? - ReadWriteWeb
The Internet economy has been built on the network effect (i.e. the effect that one user of a good or service has on the value of that product for other people). Investors and entrepreneurs have treated this like Moore's Law. But just as Moore's Law hits physical constraints, network effects have a limit in many types of online communities. Indeed, in some cases, a reverse network effect may exist: as new people join, others are motivated to leave. This dramatically affects the length of the competitive advantage enjoyed by these ventures. In this post, we'll look at which ventures suffer from reverse network effects, which don't, and which may suffer depending on the strategy they choose to adopt.
-
Skype gets more useful with each new user, and each new user promotes Skype, consciously or unconsciously, for his or her own reasons. Even better, the cost of providing the service goes down with each new user, and that is really unusual (a function of Skype's P2P architecture). Google and PayPal also benefit from each new user, but they still have to service that user, and that costs money. In the case of a video service such as YouTube, the servicing cost is significant. So Skype really is in a league of its own when it comes to network effects, and that is why it may become the world's largest telephone company and the biggest economic success story of the Web 2.0 era. (Google Voice, having just thrown its hat in the ring to battle Skype, will be interesting to watch. My bet is on Skype.)
-
Here is the theory:
In a social network, the value for existing users of a new user joining the network plateaus once users have most of their own contacts in that network.
- 3 more annotations...
Alan Rusbridger: Local papers are vital - and must be saved | Media | The Guardian
Rushbridger wants local newspapers to federate and to receive government support like BBC, since all media are equal and heding towards convergence.
ShiftSpace | An open source layer above any webpage
is an open source browser plugin for collaboratively annotating, editing and shifting the web.
Marginalia Web Annotation | geof
Marginalia is an open source Javascript web annotation system that allows users of web applications to highlight text and write margin notes.
Idle Pens Are Not Mightier Than Swords | Communicate or Die
Our mission is to build a network of labor and technology professionals to discuss and develop solutions that allow unions to realize the full potential of Internet technology.
The New York Times - Breaking News, World News & Multimedia
List of organisations/campaigns with web presence in the US
Monitor shifts from print to Web-based strategy
CSM goes email daily and printed weekly. I thought the Guardian was going to be the first.
Selected Tags
Related Tags
Sponsored Links
Top Contributors
Groups interested in Web
Diigo is about better ways to research, share and collaborate on information. Learn more »
Join Diigo