Book Review:

How to Grow Your Business on the Internet
Everything you need to know about running a successful business on the Internet are detailed in this excellent book. How-tos include: using e-mail, mailing lists, search engines, market, publicize, and advertise your business online. Firewalls, encryption, credit card transactions, fraud, and digital cash are also covered in depth in language anyone can understand.

Tools:

E-Fax - Receive faxes, free!
Want to receive faxes, but don't want the expense of purchasing a fax machine and having a second line installed? Then head over to E-Fax and get yourself a free fax number that will deliver your faxes directly into your e-mail box. Faxes are easily viewed with the e-fax viewer (also free) and can be printed out on any printer if you want to keep a "hard" copy for your files.

Calendars:

Calendars Net - Free online web calendar hosting!
"Calendars Net is a free interactive web calendar hosting service, where you and anyone you choose (or everyone) can post events visible and printable by whomever you choose or everyone. You can post events that span more than one day (with text flowing across days or even weeks) or that recur every 1st and 4th Tuesday of each month, etc. You can copy the calendar data to your own computer, so you will never lose it."

Remind U-Mail - Your free online and calendar and e-mail reminder service!
Free online calendar: "Your calendar is never more than a few clicks away when you use Remind U-Mail. Simply point your browser in our direction to update, consult, and modify your calendar."
Free e-mail reminder service: "By selecting which days you want e-mail reminders sent to you, you will be able to avoid forgetting about important events, such as your mother's birthday, your friend's soccer tournament, or your own anniversary."

Business Plan:

The Business Plan Generator - Prepare your business plan online for free!
What's a business without a business plan? Probably not as successful as it could be! If the thought of having to write a business plan makes you wince, why not head over to Women's Wire and get some step-by-step assistance?

Free poll:

Mister Poll - Conduct online surveys for free!
Do you wonder what visitors think of your website, or are you trying to do some quick market research? "Mister Poll allows you to easily add a Poll to your web site to solicit feedback or the opinion of your site's visitors."