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[description], Story, any other text you want to use. Overcoming Information Overload with Information Aggregators by: Ron Tower
The Web continues to grow rapidly. Users find it difficult to know where to spend their browsing time. Web site owners find it difficult to attract visitors. Information aggregators help with these problems. Information aggregators provide a summary view of what information is available and allow the user to go to the information source for the details. This saves users time and helps them not to miss information important to them. The summary modules often are all they want to know at a particular time. Web site owners can provide information modules that can be included on other Web sites, but they can also be displayed within an information aggregator. Providing useful summary content builds up good will and ultimately attracts more visitors to their site to see the details. The fundamental building block of an information aggregator is a summary information module. This is the content that is organized and displayed by the information aggregator. The following are some types of modules:
The module content must be served to information aggregators in some standard format that is commonly known by the content providers and that is supported by the information aggregators. Here are some common formats:
Typically these files will be accessed using a standard protocol such as HTTP. The modules are displayed in the information aggregators in different ways by different tools. Here are some common layouts:
There are two main ways to get an information aggregator. One is as a desktop tool that you can download and run on your machine. The other is by logging on to a Web site. Beyond the support for displaying content modules of different types in a useful layout, there are some other related features and approaches that could be included:
The main types of information aggregators available include personal portals such as My Yahoo (http://my.yahoo.com) and My Way (http://my.myway.com) and various RSS readers (http://blogspace.com/rss/readers). The portals are typically restricted to the specific content modules that they provide and are oriented toward a generic audience. The RSS readers typically are just for reading RSS, but some are expanding out from this base. The next generation of information aggregators will support a wider variety of information modules and narrowcasting to more specific information communities. For example, see Personal Watchkeeper (http://www.sugarloafsw.com).
replay tv
Until recently, people used a technique called symmetric key cryptography to secure information being transmitted across public networks in order to make replay tv shopping more secure. This method involves encrypting and decrypting a replay tv message using the same key, which must be known to both parties in order to keep it private. The key is passed from one party to the other in a separate transmission, making it vulnerable to being stolen as it is passed along. With public-key cryptography, separate keys are used to encrypt and decrypt a message, so that nothing but the encrypted message needs to be passed along. Each party in a replay tv transaction has a *key pair* which consists of two keys with a particular relationship that allows one to encrypt a message that the other can decrypt. One of these keys is made publicly available and the other is a private key. A replay tv order encrypted with a person's public key can't be decrypted with that same key, but can be decrypted with the private key that corresponds to it. If you sign a transaction with your bank using your private key, the bank can read it with your corresponding public key and know that only you could have sent it. This is the equivalent of a digital signature. While this takes the risk out of replay tv transactions if can be quite fiddly. Our recommended provider listed below makes it all much simpler. Real Time Media On The Net Index
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