Google
This is the most important word you should know and remember. Google is currently the number one search engine. You can use it to find answers to your questions or to drive traffic to your websites. Google also offers many free services useful for internet marketing.

Google Webmaster Tools
This is a place where you can track crawling and indexing of your websites. You can submit sitemaps, check top search queries, examine internal and external links, crawling statistics and you can also set up basic settings of the site like geographic target, preferred domain and crawl rate.

Google Analytics
This is another free tool for internet marketers. With few lines of JavaScript code added to the website you can track visitors and pages they visit. Analyzing the data you can see on what page visitors have landed, where they left the site, where they come from, and many other parameters needed to optimize the site.

Google AdWords
This is a pay-per-click program for advertisers. You target specific keywords and the ads will be displayed along search results or on content pages as AdSense ads. You have total control how much money you will spend, where the ads will be displayed, how will they appear, etc.

Google AdSense
This is a pay-per-click program for publishers. If you run a website you can display text and image ads relevant to the content on the page. AdSense is the most popular PPC program for publishers. You can see AdSense ads almost on every website.

Google Alerts
This is a very useful tool which can alert you whenever new pages that match your keywords are indexed. You simply set up target keywords the same way as you do when you search with Google and as soon as Google finds a new page with your keywords you get email notification.

Other Free Resources
There are many free resources on the web which can be used for internet marketing. Free blogs, Web 2.0 sites, and forums can help you to promote your websites.

Web Hosting
You need web hosting to serve web pages to the world. Every serious internet marketer selects one of the respectable and trusted hosting companies.

Keyword Research
This should be the first phase of every online project. There are many tools that specialize in finding those profitable keywords like Micro Niche Finder, Market Samurai as well as other free tools on the web.

WordPress
This is a free content management system commonly used for blogs. It is probably the most widely used CMS for internet marketing.

Joomla
This is another free content management system. It is more universal then WordPress and suitable for any kind of website. If blogging is not on your mind and you need to set up a website as quickly as possible then Joomla might be the solution.

Affiliate Programs
Affiliate Programs are the streams of income for many online marketers. You promote products or services and you get paid whenever you make a sale. Commissions vary from only few percent up to 75% for digital goods.