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salam every one, this is a topic from google web master centrale blog: Webmaster Level: All

Update 19 February 2013: Data Highlighter for events structured markup is available in all languages in Webmaster Tools.

At Google we're making more and more use of structured data to provide enhanced search results, such as rich snippets and event calendars, that help users find your content. Until now, marking up your site's HTML code has been the only way to indicate structured data to Google. However, we recognize that markup may be hard for some websites to deploy.

Today, we're offering webmasters a simpler alternative: Data Highlighter. At initial launch, it's available in English only and for structured data about events, such as concerts, sporting events, exhibitions, shows, and festivals. We'll make Data Highlighter available for more languages and data types in the months ahead. Update 19 February 2013: Data Highlighter for events structured markup is available in all languages in Webmaster Tools.

Data Highlighter is a point-and-click tool that can be used by anyone authorized for your site in Google Webmaster Tools. No changes to HTML code are required. Instead, you just use your mouse to highlight and "tag" each key piece of data on a typical event page of your website:
Events markup with Data Highlighter

If your page lists multiple events in a consistent format, Data Highlighter will "learn" that format as you apply tags, and help speed your work by automatically suggesting additional tags. Likewise, if you have many pages of events in a consistent format, Data Highlighter will walk you through a process of tagging a few example pages so it can learn about their format variations. Usually, 5 or 10 manually tagged pages are enough for our sophisticated machine-learning algorithms to understand the other, similar pages on your site.

When you're done, you can review a sample of all the event data that Data Highlighter now understands. If it's correct, click "Publish."
From then on, as Google crawls your site, it will recognize your latest event listings and make them eligible for enhanced search results. You can inspect the crawled data on the Structured Data Dashboard, and unpublish at any time if you're not happy with the results.

Here’s a short video explaining how the process works:

To get started with Data Highlighter, visit Webmaster Tools, select your site, click the "Optimization" link in the left sidebar, and click "Data Highlighter".

If you have any questions, please read our Help Center article or ask us in the Webmaster Help Forum. Happy Highlighting!

this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
Seo Master present to you: Author PictureBy Justin Uberti, Chromium team

Cross-posted with the Chromium Blog

Cube Slam is a Chrome Experiment built with WebRTC, an open web technology that lets you communicate in real-time in the browser (and in this case, play an old-school arcade game with your friends) without downloading and installing any plug-ins. In this post, we wanted to explain a bit about how Cube Slam works.

Cube Slam uses getUserMedia to access your webcam and microphone (with your permission, of course), RTCPeerConnection to stream your video to a friend, and RTCDataChannel to transfer the bits that keep the gameplay in sync. If you and your friend are behind firewalls, RTCPeerConnection uses a TURN relay server (hosted on Google Compute Engine) to make the connection. When there are no firewalls in the way, however, the entire game happens directly peer-to-peer, reducing latency for players and server costs for developers.


CubeSlame Game Over screen

Cube Slam is the first large-scale application to use RTCDataChannel, which provides an API similar to WebSocket, but sends the data over the RTCPeerConnection peer-to-peer link. RTCDataChannel sends data securely, and supports an "unreliable" mode for cases where you want high performance but don't care about every single packet making it across the network. In cases like games where low delay often matters more than perfect delivery, this ensures that a single stray packet doesn't slow down the whole app.

RTCDataChannel only supports unreliable mode in desktop Chrome today. We're working on implementing the latest WebRTC spec, where we'll use the standard SCTP protocol to support reliable mode. WebRTC will also be available on Chrome for Android later this year, and you can try it now by flipping “Enable WebRTC Android” in chrome://flags. Several browsers are currently working on implementing WebRTC, and we’re looking forward to the day when you can have a Cube Slam face-off against your friends on any browser and any device.

To learn more about the tech in Cube Slam, you can check out our technology page and source code. Disable the shields! Destroy the screen! Have fun!

Justin Uberti is one of the co-creators of the WebRTC initiative, and leads the WebRTC engineering team at Google. Previously, Justin helped create Google+ Hangouts.

Posted by Ashleigh Rentz, Editor Emerita

2013, By: Seo Master
salam every one, this is a topic from google web master centrale blog: Webmaster Level: All

We certainly hope you never have to use our new Help for hacked sites informational series. It's a dozen articles and over an hour of videos dedicated to helping webmasters in the unfortunate event that their site is compromised.


Overview: How and why sites are hacked

If you have further interest in why cybercriminals hack sites for spammy purposes, see Tiffany Oberoi’s explanation in Step 5: Assess the damage (hacked with spam).

Tiffany Oberoi, a Webspam engineer, shares more information about sites hacked with spam

And if you’re curious about malware, Lucas Ballard from our Safe Browsing team, explains more about the topic in Step 5: Assess the damage (hacked with malware).

Lucas Ballard, a Safe Browsing engineer, and I pretend to have a totally natural conversation about malware

While we attempt to outline the necessary steps in recovery, each task remains fairly difficult for site owners unless they have advanced knowledge of system administrator commands and experience with source code. For helping fellow webmasters through the difficult recovery time, we'd like to thank the steady members in Webmaster Forum. Specifically, in the subforum Malware and hacked sites, we'd be remiss not to mention the amazing contributions of Redleg and Denis Sinegubko.

How to avoid ever needing Help for hacked sites
Just as you focus on making a site that's good for users and search-engine friendly, keeping your site secure -- for you and your visitors -- is also paramount. When site owners fail to keep their site secure, hackers may exploit the vulnerability. If a hacker exploits a vulnerability, then you might need Help for hacked sites. So, to potentially avoid this scenario:
  • Be vigilant about keeping software updated
  • Understand the security practices of all applications, plugins, third-party software, etc., before you install them on your server. A security vulnerability in one software application can affect the safety of your entire site
  • Remove unnecessary or unused software
  • Enforce creation of strong passwords
  • Keep all devices used to log in to your servers secure (updated operating system and browser)
  • Make regular, automated backups of your site
Help for hacked sites can be found at www.google.com/webmasters/hacked. We look forward to not seeing you there!

this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com
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