LAMP is an acronym that stands for Linux, Apache, MySQL, and PHP (or Perl or Python). It is a Web development platform that defines the Operating System (Linux), Web Server (Apache), database (MySQL), and scripting language (PHP,
Perl, or Python).
The space between lines of type. In CSS, this is referred to as lineheight. Leading is a form of micro white space that allows you to control the legibility of text on Web pages.
A link farm is a website set up with the sole purpose of increasing the link popularity of other sites by increasing the number of incomming links to those sites. They are typically made up of long lists of unrelated links. Some link farms are created as networks of sites that contain numerous links to one another. Nearly all search engines remove link farms from their directories when they find them. And many also penalize other sites that link to them. It is not a good idea to link to a link farm if you rely at all on organic search for pageviews.
Liquid layouts are layouts that are based on percentages of the current browser window's size. They flex with the size of the window, even if the current viewer changes their browser size as they're viewing the site. Liquid width layouts allow a very efficient use of the space provided by any given Web browser window or screen resolution. They are often preferred by designers who have a lot of information to get across in as little space as possible, as they remain consistent in size and relative page weights regardless of who is viewing the page.
The term “long tail” refers to a typical graph of probability distribution. In a typical probability distribution, the majority of the items graphed will be in the middle portion, with a the distribution getting thinner and smaller as you move to the right.When you apply this to SEO, you can see that there are a small number of keywords that are extremely popular, a large group that has middling popularity, and then lots and lots of different keyword phrases that get only a few clicks.
