This site: http://www.baycongroup.com/powerpoint2007/01_powerpoint.htm has a comprehensive introduction to Powerpoint. If you need to learn advanced Powerpoint techniques, I recommend using the open courseware provided by many universities or searching YouTube.com for specific lessons with visuals.
You may be able to get these lessons through online college courses or downloading a program onto your computer from an online source. There are programs you can purchase on a disc that guide you through some beginner aspects of powerpoint as well.
No, there is not a website in which one can take police academy lessons. This is because the lessons presented in a police academy are often times physical and therefore impossible to accomplish with an online academy.
There are many online shops that provide taking driving lessons services. Amazon.com is one of online shop that provides taking driving lessons services. You can visit www.amazon.com
Online piano lessons are not usually offered by a qualified music teacher. Online piano lessons can be found that teach basic keys. Consult Youtube for videos.
Taking guitar lessons if you are interested in becoming a guitarist someday is a must. So if you are looking for online guitar lessons then you can go to http://www.guitartricks.com/.
The University of Phoenix is a good choice to take online counseling lessons. They have a very good reputation. Liberty University offers Master's degrees in counseling online also.
There are many websites where you can take English lessons and training courses online. You can go to www.english-to-go.com/, www.englishlink.com/ or www.englishacademy.com/.
You can take cisco lessons in a school such as a college or online, there are also certain places and sites that will offer lessons on cisco products on the spot.
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There are several places in which you can go online to take drawing lessons. Oddly enough, Youtube is a great source for this. There are thousands of professinals who make videos like this.
There are beginner acoustic guitar lessons that you can take online. Some of them are free, but you have to pay for others. You can get free tablatures also.
You can find online guitar lessons for kids through websites such as Guitar Lessons, Guitar Tricks, and Take Lessons. You can also watch tutorials for free on the popular video website YouTube.