Showing posts with label internet. Show all posts
Showing posts with label internet. Show all posts

Wednesday, January 6, 2010

facebook history

My friends all must have known that his name facebook, although among all my friend there who do not have facebook. "Missed it deh no". I am here not to discuss my friend got it or not, but I wanted to share information about its history Facebook. before this information I can self-www.tips blog fb.com pal. Well I also wanted to share all of the information ..
Facebook is a social networking website or friends where the users are able to infinite city communities, workplaces, schools, and regions from any touch each other, such as Friendster similar sites, we can menapilkan profile and upload our personal photos.


Facebook itself was founded by Mark Zuckerberg, a Harvard graduate and former Ardsley High School student was first diluncurankan on 4 February and initially only for students of Harvard College. but its membership expanded to other schools in the Boston area (Boston College, Boston University, MIT, Tufts), Rochester, Stanford, NYU, Northwestern, and all schools are included in the Ivy League.

And finally Facebook menajdi thenar Many other universities are further added in succession within one year after its release. Finally, the people who have a university email address (such as. Edu,. Ac.uk, etc.) from around the world can also join this site.

The development of Facebook itself is not without obstacles "to the highway traffic jam aja". Facebook had been banned and blocked in some countries. example of Iran and Syria, in iran facebook is blocked on the basis of a campaign that will be faced by iran they think facebook as one of the capital meraka campaign. and some of the workplace so that workers do not abuse their work time to open Facebook. And the issue of allegations that Zuckerber stealing code from other programs to make themes for Facebook.
alexa rank menerut facebook first ranked sites most visited in Indonesia. And the number one site for photos in the United States, surpassed other public sites such as Flickr, with 8.5 million photos uploaded every day.

Facebook received with an initial investment of U.S. $ 500,000 in June 2004 by PayPal co-founder Peter Thiel. This is a year later followed by $ 12.7 million in business capital from Accel Partners, and $ 27.5 million more from Greylock Partners. A leaked the cash flow statement shows that for fiscal year 2005, Facebook had a net loss of $ 3.63 million.

With the sale of the social networking site MySpace to News Corp. on July 19, 2005, rumors surfaced about a possible sale of Facebook for larger media companies. Zuckerberg has said he would not sell the company, and rejected rumors otherwise. On March 28, 2006, BusinessWeek reported that the potential acquisition of Facebook in the negotiations. Facebook reportedly declined an offer of $ 750 million from an unknown bidder, and he asked rumored price increases as high as $ 2 billion

Tuesday, August 25, 2009

Search Engines

Search Engines

It is the search engines that finally bring your website to the notice of the prospective customers. Hence it is better to know how these search engines actually work and how they present information to the customer initiating a search.

There are basically two types of search engines. The first is by robots called crawlers or spiders.

Search Engines use spiders to index websites. When you submit your website pages to a search engine by completing their required submission page, the search engine spider will index your entire site. A ‘spider’ is an automated program that is run by the search engine system. Spider visits a web site, read the content on the actual site, the site's Meta tags and also follow the links that the site connects. The spider then returns all that information back to a central depository, where the data is indexed. It will visit each link you have on your website and index those sites as well. Some spiders will only index a certain number of pages on your site, so don’t create a site with 500 pages!

The spider will periodically return to the sites to check for any information that has changed. The frequency with which this happens is determined by the moderators of the search engine.



A spider is almost like a book where it contains the table of contents, the actual content and the links and references for all the websites it finds during its search, and it may index up to a million pages a day.

Example: Excite, Lycos, AltaVista and Google.

When you ask a search engine to locate information, it is actually searching through the index which it has created and not actually searching the Web. Different search engines produce different rankings because not every search engine uses the same algorithm to search through the indices.

One of the things that a search engine algorithm scans for is the frequency and location of keywords on a web page, but it can also detect artificial keyword stuffing or spamdexing. Then the algorithms analyze the way that pages link to other pages in the Web. By checking how pages link to each other, an engine can both determine what a page is about, if the keywords of the linked pages are similar to the keywords on the original page.

Keyword Density

Keyword Density

Keyword density is an indicator of the number of times the selected keyword appears in the web page. But mind you, keywords shouldn’t be over used, but should be just sufficient enough to appear at important places.

If you repeat your keywords with every other word on every line, then your site will probably be rejected as an artificial site or spam site.

Keyword density is always expressed as a percentage of the total word content on a given web page.

Suppose you have 100 words on your webpage (not including HMTL code used for writing the web page), and you use a certain keyword for five times in the content. The keyword density on that page is got by simply dividing the total number of keywords, by the total number of words that appear on your web page. So here it is 5 divided by 100 = .05. Because keyword density is a percentage of the total word count on the page, multiply the above by 100, that is 0.05 x 100 = 5%

The accepted standard for a keyword density is between 3% and 5%, to get recognized by the search engines and you should never exceed it.

Remember, that this rule applies to every page on your site. It also applies to not just to one keyword but also a set of keywords that relates to a different product or service. The keyword density should always be between 3% and 5%.
Simple steps to check the density:
Copy and paste the content from an individual web page into a word-processing software program like Word or Word Perfect.
Go to the ‘Edit’ menu and click ‘Select All’. Now go to the ‘Tools’ menu and select ‘Word Count’. Write down the total number of words in the page.
Now select the ‘Find’ function on the ‘Edit’ menu. Go to the ‘Replace’ tab and type in the keyword you want to find. ‘Replace’ that word with the same word, so you don’t change the text.
When you complete the replace function, the system will provide a count of the words you replaced. That gives the number of times you have used the keyword in that page.
Using the total word count for the page and the total number of keywords you can now calculate the keyword density.