2.  Shared Calendars is a way to share free calendars, to do lists, files and photos with friends and family.  This is useful because it helps loved ones know where you are and what you are doing. www.keepandshare.com

3.  A blog is a website on which an individual or group of users record opinions, information, etc. on a regular basis.  This is useful because it can help share important information from a specific source. www.dictionary.com

4.  White papers is an authoritative report or guide that helps solve a problem. White papers are used to educate readers and help people make decisions.  This is useful when people need to make a decision and need the facts to back it up. www.wikipedia.org

5.  A podcast is a multimedia digital file made available on the internet for downloading to a portable media player, computer, etc.  This is useful because it is an easier way to obtain a file. www.dictionary.com

6.  A webcast is a live video broadcast of an event transmitted across the internet.  This is useful because if you aren’t where the event is occurring, you can still watch it as it is happening. www.dictionary.com

7.  Skype is a software application that allows users to make voice calls over the internet. Calls to other users within the Skype service are free, while calls to both traditional landlines and mobile phones can be made for a fee using a debit based user account system.  This is useful because it allows people to interact with friends or family for free when they are not with them. www.dictionary.com

8.  Delicious is a way to keep, share, and discover the best of the web. It is the world’s leading social bookmarking service.  This is useful because it let’s you save your favorite sites for future endeavors. www.delicious.com

9.  Twitter is a free social networking website that allows the user to micro-blog. According the website “twitter is a service for friends, family, and co-workers to communicate and stay connected through the exchange of quick, frequent answers to one simple question: What are you doing?”  This is useful because it helps people stay in touch and communicate to multiple people at once. www.operationstech.about.com

10.  Studystack is a collection of study guides covering a wide range of topics that can be accessed in a variety of ways, including being exported to PDA and mobile phone friendly flashcards.  This is useful because it is a good study tool that is simple and easy to do. www.lifehacker.com

11.  Whoozy is a search engine focused on people and companies. The information gathered is targeted to your input and will return profiles, videos, blogs, press releases, etc. relevant to your subject.  This is useful because it helps you find exactly what you are looking for without having to search around. www.recruitingtools.com

12.  Zillow is an online real estate database that was founded in 2005 by Rich Barton and Lloyd Frink. The website uses a proprietary algorithm called the “Zestimate” to appraise property values based on undisclosed factors.  This is useful because it helps home sellers and seekers find an estimate on their property on the internet. www.wikipedia.org

13.  Sleeping in Airports is a guide that includes reviews of the best and worst airports. Tips for sleeping in the airport over night or while stuck in the airport during transit, weather or airline delays.  This is useful because it saves you money on a hotel and it also tells you which airports are the best to go to. www.sleepinginairports.net

14.  Bidding for Travel’s primary goal is to promote informed bidding when using Priceline.com’s travel products.  This is useful because you can get an even lower price than if you used Priceline.com. www.biddingfortravel.yuku.com

15.  Priceline is a company and a commercial website that helps users obtain discount rates for travel-related purchases such as plane tickets and hotel stays.  This is useful because it helps people find the cheapest and most convenient plane tickets and hotel stays. www.wikpedia.org

16.  Kayak helps you find and book cheap flights, hotels, vacations and rental cars.  This is useful because when you’re going on vacation, you don’t have to spend an arm and a leg. Instead, you can find the cheapest prices in a quick and efficient way. www.kayak.com

17. “Any sufficiently advanced technology is indistinguishable from magic.” - Arthur C. Clarke