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salam every one, this is a topic from google web master centrale blog:
We've upgraded the crawl rate setting in Webmaster Tools so that webmasters experiencing problems with Googlebot can now provide us more specific information. Crawl rate for your site determines the time used by Googlebot to crawl your site on each visit. Our goal is to thoroughly crawl your site (so your pages can be indexed and returned in search results!) without creating a noticeable impact on your server's bandwidth. While most webmasters are fine using the default crawl setting (i.e. no changes needed, more on that below), some webmasters may have more specific needs.

Googlebot employs sophisticated algorithms that determine how much to crawl each site it visits. For a vast majority of sites, it's probably best to choose the "Let Google determine my crawl rate" option, which is the default. However, if you're an advanced user or if you're facing bandwidth issues with your server, you can customize your crawl rate to the speed most optimal for your web server(s). The custom crawl rate option allows you to provide Googlebot insight to the maximum number of requests per second and the number of seconds between requests that you feel are best for your environment.

Googlebot determines the range of crawl rate values you'll have available in Webmaster Tools. This is based on our understanding of your server's capabilities. This range may vary from one site to another and across time based on several factors. Setting the crawl rate to a lower-than-default value may affect the coverage and freshness of your site in Google's search results. However, setting it to higher value than the default won't improve your coverage or ranking. If you do set a custom crawl rate, the new rate will be in effect for 90 days after which it resets to Google's recommended value.

You may use this setting only for root level sites and sites not hosted on a large domain like blogspot.com (we have special settings assigned for them). To check the crawl rate setting, sign in to Webmaster Tools and visit the Settings tab. If you have additional questions, visit the Webmaster Help Center to learn more about how Google crawls your site or post your questions in the Webmaster Help Forum.


Written By Pooja Shah, Software Engineer, Webmaster Tools Team
this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com

from web contents: More control of Googlebot's crawl rate 2013

Seo Master present to you:

Attributes Of A Great Web Browser For Students
Img.Credit:freedigitalphotos
Getting work done as a student involves constant research and a reliable web browser. Let's go over the attributes of a great web browser for students.

While many students first work with Internet Explorer when they are younger, other choices may prove more appealing. Recently, web browsers such as Chrome , TorchBrowser, and Firefox have gained broad audiences. Additional choices for mobile use mean students can continue working away from laptops and desktop computers.

A great web browser should make the basic functions easy to handle. Downloads should be a snap to start and they should be quick to locate once completed. Ideally, a user should be able to enable a master password to protect user names and passwords for websites. Keyboard shortcuts that aren't complicated make work flow faster for research throughout the day.

Tab Management:

The ability to manage tabs is another important factor for students. Researching a paper can involve the use of multiple tabs during a browsing session. Firefox's ability to make tab groups as separate sections is a plus.

Speed is an essential attribute as well. A student can't waste time waiting for a browser to load forever. Loading pages, even with multiple tabs open, shouldn't take longer than a few seconds. Gregg Keizer of Computerworld notes that Google recently added a speed boost to the latest version of Chrome. Another useful tool is a speed dial feature like the one in Opera. The speed dial displays a user's favorite sites on opening the browser.

Synchronization:

Synchronizing browsers between different computers is a must-have feature for students. This is useful if commuting between school and home or working on a lab partner's computer. It's also handy if one switches between operating systems like a Mac at school and a Windows PC at home. Firefox Sync allows a student to share passwords, tabs, history and bookmarks between various computers. A user signing into a Google account on Chrome can opt for synchronizing too.

Mobile browsers allow students to learn in the library, to learn right outside of class or to learn on the go. A mobile browser should be robust and able to open a student's essential websites properly. It should also let a user switch between an iPad, a smartphone and a laptop seamlessly. Mobile versions of Chrome and Firefox are available. Opera is installed on many mobile devices. Dolphin is another useful mobile browser for tablets and smartphones.

Customization:

Extensions and add-ons bring useful features to a web browser. A great web browser should have a broad range of extensions and add-ons with helpful user reviews. Look for extensions and add-ons that enhance research and improve social networking. Others can block websites when students don't want to be distracted or check for grammar errors.

Students should also check into a web browser's privacy features,
  • If sharing a computer, it should be easy to sign out of a web browser.
  • Erasing cookies and browsing history should be fast.
  • Anonymous tabs and windows should be quick to implement.
Everyone loves to personalize their computers and mobile devices. A web browser can be just as eye-catching with customized themes featuring colorful graphics and art. The web browser should allow users to easily customize fonts and background colors as well.

Selecting the right web browser can contribute to a student's productivity. Look over the attributes of a great web browser for students to find a good fit.




Author Bio:
Sarah Anderson is guiding users of all ages how to use TorchBrowser.com to download torrent files. A youthful face for web browsing and downloading in the hi-tech world.
2013, By: Seo Master

seo Attributes Of A Great Web Browser For Students 2013

Seo Master present to you: By Christophe Bisciglia, Senior Software Engineer

For the last year or so, we've been telling you about educational and research partnerships resulting form our Academic Cloud Computing Initiative. We've shared educational material resulting from our extensive partnership with the University of Washington and partnered with the National Science Foundation to directly engage the research community and provide access to a large scale, data intensive computing cluster.



Why? Because big data is cool; it drives nearly everything we do here at Google and provides unprecedented opportunities for understanding science in new ways. It's been an exciting year learning how to work with the academic community in this space, and we'd like to start sharing that with other passionate educators.

To that end, we've worked with our academic partners to offer a two and a half day NSF-sponsored workshop, hosted at UW, which will focus on providing material and curricular support to undergraduate computer science educators seeking to address big data in the classroom. This will largely focus on material that can be found on Google Code University, but will include practical lab components so educators can get their hands dirty with the open source platforms and the tools necessary to offer a class.

Interested faculty should feel free to apply for attendance here. The NSF has provided support to cover expenses for those selected to attend.2013, By: Seo Master

seo Announcing Data Intensive Scalable Computing in Education Workshop 2013

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