Group items tagged

Due to browsers' prohibition on cross domain XMLHTTP calls, all AJAX websites must have a server side proxy to fetch content from external domains like Flickr or Digg. From the client-side JavaScript code, an XMLHTTP call goes to the server-side proxy hosted on the same domain, and then the proxy downloads the content from the external server and sends back to the browser. In general, all AJAX websites on the Internet that are showing content from external domains are following this proxy approach, except for some rare ones who are using JSONP. Such a proxy gets a very large number of hits when a lot of components on the website are downloading content from external domains. So, it becomes a scalability issue when the proxy starts getting millions of hits. Moreover, a web page's overall load performance largely depends on the performance of the proxy as it delivers content to the page. In this article, we will take a look at how we can take a conventional AJAX Proxy and make it faster, asynchronous, continuously stream content, and thus make it more scalable.

RSS (Rich Site Summary, RDF Site Summary, or Really Simple Syndication) has been around since the mid-1990s. Over the years, several variants of the RSS format have popped up and several claims have been made about its ownership. Despite these differences, RSS never ceased to serve its usefulness in distributing Web content from one Web site to many others. The popularity of RSS gave way to the growth of a new class of Web software called the feed reader, also known as the feed aggregator. Although there are several commercially available feed aggregators, it's easy to develop your own feed aggregator, which you can integrate with your Web applications. You'll appreciate this article's fully functional PHP code snippets, demonstrating the use of PHP-based server-side functions to develop a customizable RSS feed aggregator. In addition, you'll reap instant benefits from using the fully functional RSS feed aggregator code, which you can download from this article.

Creating complex web applications demands organization and modularization. Modularization introduces a new problem - the comunication pipes between components. This is a serious challenge for developers, as more components and widgets mean more pipelines and more dependencies. In this article, we'll look at a technique to mitigate these issues: Creating an abstraction layer to moderate the comunication between the components and widgets in a web application. This technique is based on YUI and makes use of my Bubbling Library, which is a BSD-licensed superset of functionality that builds on top of the YUI foundation.

It s great to keep in touch with your friends and colleagues, but does the price have to be spam, zombie bites, and friend invitations from people you ve never heard of?

FriendFeed enables you to keep up-to-date on the web pages, photos, videos and music that your friends and family are sharing. It offers a unique way to discover and discuss information among friends. Sign up for FriendFeed, invite some friends, and get a customized feed made up of the content that your friends shared - from news articles to family photos to interesting links and videos. FriendFeed automatically imports shared stuff from sites across the web, so if your friend favorites a video on YouTube, you get a link and a thumbnail of the video in your feed. And if your friend likes a news story on Digg, you get a link in your feed. FriendFeed makes all the sites you already use a little more social.

A special feed for your friends to view

wow. yes this is really amazing... i shared lots of pics and articles to my friends and relatives

We live in the era of Google Maps. What started off as an impressive refresh of Mapquest-style maps now fuels web mashups. With APIs official and unofficial, Google Maps is simple enough for front-end designers to embed and for back-end programmers to target. Along the way to becoming nearly ubiquitous, it has played a major role in the "democratization of mapping." For the practical developer who wants to add geospatial information to a site or application, the Google Maps API has been an easy call. But, perhaps no longer. As websites mature and the demand for geographic applications grow, the old mashup arrangement is starting to chafe. Mapping components are more and more vital, and so we demand greater control, expressiveness, and functionality from them. Fortunately, as in many aspects of internet technology, an ecology of open source online mapping tools has emerged alongside the market leader. It is now possible to replicate Google Maps' functionality with open source software and produce high-quality mapping applications tailored to our design goals. The question becomes, then, how?

Data visualization in HTML has long been tricky to achieve. Past solutions have involved non-standard plugins, proprietary behavior, and static images. But this has changed with the recent growth in support for the new HTML Canvas element, which provides a native drawing API that can be addressed with simple Javascript. This article is a proof of concept for visualizing HTML table data with the canvas element.

"FanIQ is a new type of sports site that empowers sports fans to be sports experts. For the first time, sports fans can accumulate a wide variety of statistics to prove their sports knowledge. Individually, fans compete to provide the most accurate predictions, submit the best news articles and write the best blogs. Collectively, this competition results in the best sports content from across the Web and proprietary "Wisdom of Crowds" data."

article about events in web application design

Online Collaboration Articles about online collaboration in business, education and organisations. Wiki Software Detailed reviews and comparisons of popular wiki software. Wiki FAQs How to choose a wiki, how to use a wiki and other wiki advice. Website Promotion No point having a wiki, website or blog unless you promote it. Website Design Useful website design and website development tips for newbies wanting to extend their wiki, website or blog. Domain Names Your own domain name is important. Here are some things you should know.

If you use Adobe Photoshop, whether you're a graphic designer, a website designer, a print media designer -- okay, a designer of just about any sort, then you know how useful and helpful a quality website that offers free Photoshop brushes can be. In this article I've gathered a list of my absolute favorites, and in my opinion, having this list means you no longer have to go searching Google or follow blind links for high quality Photoshop brushes.

Accessible data visualization in HTML has always been tricky to achieve, particularly because elements such as images allow only the most basic features for providing textual information to non-visual users. A while back, we wrote an article describing a technique we came up with to use JavaScript to scrape data from an HTML table and generate charts using the HTML 5 Canvas element. The technique is particularly useful because the data for the visualization already exists in the page in structured tabular format, making it accessible to people who browse the web with a screen reader or other assistive technology.

This article details the hardware and software required for a fully functional passive infrared (PIR) sensor with an associated remote control unit.

Since last day/night Wolfram Alpha is alive. The big question about Wolfram Alpha was if this engine can outclass google. This morning I made my own first experiences with Wolfram Alpha. My first impression is that google and Wolfram Alpha are completely different. The following article will show my first attempts and the results.

This article will describe regulator basics and the two types of linear regulators.

The death and mourning process of friend in virtual society.

Official MS knowledgebase article.

Most people getting started with JavaScript these days are faced with the challenging task of picking a library to use, or at least which one to learn first. If you're working for a company chances are they have already chosen a framework for you, in which case the point is somewhat moot. If this is the case and they've chosen MooTools and you're used to jQuery, then this article might still be of some use to you.

This article introduces the operation and application of the ISL6257 (datahseet) battery charger.