This depends on the type of marketing you want to do. You can find different marketing tools on the web from internet marketing to general business marketing tutorials. The difference with most tutorials on the web is they can be biased or geared towards generating income for a specific business.

The U.S. Small Business Administration (SBA) is an excellent reference for small business owners and inspiring business entrepreneurs. The SBA website offers advice on developing a marketing plan and additional resources from conducting a market analysis to sales and management. Creating the right marketing plan is crucial to the success of a small business to ensure you have the right target audience for your product or service while maintaining a set budget. The sample plans provided by the SBA will help begin the process and can serve as a template versus purchasing additional software.

"Marketing takes time, money, and lots of preparation. One of the best ways to prepare you is to develop a solid marketing plan. A strong marketing plan will ensure you're not only sticking to your schedule, but that you're spending your marketing funds wisely and appropriately."

The SBA also provides a how to section to help understand the different aspects of marketing.

Marketing is very important part of business and comprises strategies and tactics used to identify, create and maintain satisfying relationship with customers which results in value for both customer and marketer.
To be able to reach this goal, a marketer uses different tools in making directions with regards to target market, products, promotion, distribution, pricing and supporting services.
Strategies is the direction of marketing efforts over a period of time and tactics are actions taken to follow the strategies are established.
Identifying is the most important marketing function and involved knowledge of customers, competitors, and markets.
Research is also very important in marketing decisions for these decision should never be done without first committing time and resources to obtain very important information.
If you wan to be more knowledgeable about marketing and take marketing tutorials, there are several tutorials you can find online.
Visit these sites:
*http://www.tutorialized.com/tutorials/Marketing/1
*http://www.gnc-web-creations.com/marketing-tutorials.htm
*http://managementhelp.org/marketing/index.htm#under
*http://www.knowthis.com/principles-of-marketing-tutorials/what-is-marketing/welcome-to-marketing/