Geotagging Web Pages and RSS Feeds
Now that your Web site has been geotagged, what can you do to share this information with users and have new users find your site? A2B is the new incarnation of the defunct geourl.com. A2B allows Web site administrators to register their sites. From there, users can search for sites based on location or geographic locality to another Web site. It may be interesting to find out what other sites and places can be found in your area.
A2B also provides a free public API that allows application and Web site developers to query the A2B database of locations. The A2B query does not return the actual location of the Web sites, however, merely their distances and directions (compass headings) from the queried location.
To find out the latitude and longitude or city and region of a Web site, the user can view the Web site's meta information. To illustrate this, we have written an extension to the Firefox browser that alerts users that geotags are available for the Web site currently being viewed. The extension also retrieves that information without the user having to look at the Web site's markup source. Download and install the extension to try it out for yourself.
Another index to check out is WorldPress. For RSS feeds, MapBureau and Michael Maron's WorldKit Mapper have on-line mapper applications that parse out the locations from your feed and display them on a map. It then is possible to embed a link to a map of your feed in your Web site.
Other applications of geotags include creating a Web page of closely related Web sites, similar to a Web ring, and display their locations on a map of the Earth or a specific region. A restaurant review Web page, for example, could display a map of their reviewing regions, and users could click on locations to read reviews of the restaurants located there. Furthermore, travelers could pull up Weblogs and travel information for the area they will be visiting. Hopefully, larger services similar to Google Local or Multimap will be developed that automatically will collect and use this information to provide users with a large database of services.
Geotags currently are not employed widely, and only a small number of services support their use. However, many could benefit from better geographic knowledge of Web sites and on-line data. Applications could provide a central location to assist users in finding out about their locations or intended travel locations. In order for this to occur, a better standardization of geospatial metadata must be created, utilized and supported by the Internet community. The W3C Semantic Web is such an effort to standardize the extension of Web data. Many groups across the globe are working together to create enhanced definitions (see Resources). Part of these efforts is defining a complete standard for geospatial tagging and for supporting other location-based services. With this work, the future of geotagging will provide better integration between the digital world and the physical world.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
- SourceClear Open
- SUSE LLC's SUSE Manager
- My +1 Sword of Productivity
- Tech Tip: Really Simple HTTP Server with Python
- Doing for User Space What We Did for Kernel Space
- Parsing an RSS News Feed with a Bash Script
- Managing Linux Using Puppet
- Returning Values from Bash Functions
- SuperTuxKart 0.9.2 Released
- Non-Linux FOSS: Caffeine!
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide