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OAuth and OpenID OAuth is not an OpenID extension and at the specification level, shares only few things with OpenID – some common authors and the fact both are open specification in the realm of authentication and access control. ‘Why OAuth is not an OpenID extension?’ is probably the most frequently asked question in the group. The answer is simple, OAuth attempts to provide a standard way for developers to offer their services via an API without forcing their users to expose their passwords (and other credentials). If OAuth depended on OpenID, only OpenID services would be able to use it, and while OpenID is great, there are many applications where it is not suitable or desired. Which doesn’t mean to say you cannot use the two together. OAuth talks about getting users to grant access while OpenID talks about making sure the users are really who they say they are. They should work great together.

Is OAuth a New Concept? No. OAuth is the standardization and combined wisdom of many well established industry protocols. It is similar to other protocols currently in use (Google AuthSub, AOL OpenAuth, Yahoo BBAuth, Upcoming API, Flickr API, Amazon Web Services API, etc). Each protocol provides a proprietary method for exchanging user credentials for an access token or ticker. OAuth was created by carefully studying each of these protocols and extracting the best practices and commonality that will allow new implementations as well as a smooth transition for existing services to support OAuth. An area where OAuth is more evolved than some of the other protocols and services is its direct handling of non-website services. OAuth has built in support for desktop applications, mobile devices, set-top boxes, and of course websites. Many of the protocols today use a shared secret hardcoded into your software to communicate, something which pose an issue when the service trying to access your private data is open source.

This document contains a library of patterns used by sites in the Web 2.0 landscape to support the new user sign-up and ramp-up experience. By leveraging the patterns we identified across twenty applications, you'll learn how to get users to join and participate in your network or application.

One of our Chinese users, Oliver Ding has uploaded this slideshow , which is a call for people to help out the victims of the tragic earthquake that rocked central China’s Wenchuan County on the 12th of May, leaving behind thousands of dead. We deeply mourn the tragedy and would request our users to do their little bit in this regard. Please head over to these two sites - PledgeBank & CnReviews.com to learn how you could help out in contributing. We also request everyone to join the China EarthQuake Group that Oliver has created. We have featured his pledge as the Slideshow of the Day.

I didn't find any of my friends using this, but I did find an old account of my own that I had completely forgotten about. For a split second I was like, "how did this person find all those photos of me???" Lol.

Any thoughts on the privacy issue I raised above? Revealing information about users shouldn't be something a user has to opt out of. For example some people may not want their co-workers or potential employers to know that they have a flickr account. They should have to opt in instead of opt out. I think this could get ugly for some people who don't want to be found. Also the setting for opting out should be changed. I may want to be found by my flickr buddy name, but just not by the new email address way. There should be a way to leave things the same way they were before. Now I can only opt out of everything or opt in for everything.

Proggie: Privacy is something we take very seriously at Flickr. People have actually always been searchable by email address on Flickr (via "People Search"), and we chose to respect our member's existing people search preference settings (as well as make that preference page easier to find). On the opt-out versus opt-in issue, this is something where we carefully weighed the options, and chose the default option based on what we feel would have the greatest benefit for the majority of our members. Just as we chose to make "public" the default for uploaded photos, we chose to preserve opt-out as the default for people search on Flickr.

But just like blogs made two-way conversations on the Web relatively cheap, easy, and quick for the masses compared to previous methods (such as personal Web sites), conversational models on the Web have continued to evolve.  Recently, microblogging and social aggregation platforms like Twitter and Friendfeed have emerged to offer alternative models that are compelling for a number of significant reasons. 

Users of the latest social media tools are far more likely to post several times a day, more likely dozens of times, each one forming a new conversational beachhead.  This can be overwhelming, but it can also be enormously stimulating and rewarding, as a form of collaboration, cross-pollination, brainstorming, serendipity, news gathering, and countless other activities provide one with a continuous connection to the broader world.

In addition to the everyday struggles of information overload the average computer user deals with - like the overflowing inbox, for example - those in the internet/new media/technology space aren't just overwhelmed with new content, but also with new applications and choices to manage that content. What's a web-app loving person to do?

Early adopters are not going to stop playing with every new service, but it's clear that we're getting to a point where tools that centralize, aggregate, but most importantly filter our content are going to be the ones that win out. There are only so many hours in the day, and, as it stands right now, every single one of them could be filled just consuming and interacting with content, social media, and web services.

豆瓣改版了，骂声一片。 本来它是文艺小青年装B网站，众人尽管不齿，还是讪笑着玩得特起劲，服务器出点小问题，一群人骂娘说生活失去意义。这下阿北成全你们，把你们的小心思扩大，友邻最大，广播最多，促进豆友内部互相帮助互相解决，当然解决男女问题是首要的，万恶淫为首，万事爱当先。本来是好事，谁知道触犯了敏感豆友们的神经，谁让你整成交友网站了，那都是现实里没人要跑网上拿PS照片忽悠人的怪物大联盟，跟咱有啥半毛关系？！再说文艺青年最怕别人把他看得一清二楚，仿佛这样就庸俗了就大众了就不稀罕了。这就好像我们都知道人有三急，5块钱的洗手间和5毛钱的茅厕都产出一样的东西，但是环境大不同啊。总之，你拿掉了我的遮羞布，我很愤怒。

当然要是有缘，上厕所也能碰上，可我在豆瓣碰到的情况是，接到份求爱信，那语气特别颐指气使，好像我被他看上完全就是皇上宠幸三生有幸，是啊，我都被一文艺小青年看上了，我多不容易啊。看人太热情回了个目前没档期，哪儿凉快哪呆去。对方迅速回信：我这样的青年才俊典范，你不答应会后悔的！ 我真后悔了，我发誓要是有男朋友，绝不让他沾豆瓣，豆瓣会吃了我男朋友！

Well said. Very quickly the story turned to Twitter/Scoble/beating USGS by 3 min. I also did not like watching how TechMeme rewarded a lot of A-list tech blogs and aside from Global Voices Online was not able to identify other great sources of English content on the Earthquake such as Shanghaiist or Danwei. Another example of self-reflective narcissism at work. At least Jeremiah Owyang tried to use his bully pulpit of social media to ask people to have compassion and give to the Red Cross. Kudos to Jeremiah for that. Posted by Elliott Ng on May 13, 2008 at 1:36 pm

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