If you are running a small business, you know that to be successful you need to be a jack-of-all-trades. The smart way to manage everything from company finances, to client relations, to marketing, is to use the right tools – tools that are simple enough that they won’t require you to spend a lot of time and money you don’t have setting them up.

In this guide we cover the 25 (13+12) best web2.0 applications for entrepreneurs who are looking for simple, cheap, and effective solutions to solving some of the tasks facing their small business or startup. The 25 applications selected were chosen both on the basis of their usefulness for the individual small business manager as well as their effectiveness in providing community support and networking opportunities for users.

You’re in business to make money. However, if you can’t manage your finances, payments, and assets, you’re going to find that expenses start to creep up, financing runs short, and your ability to plan for the future is nil. Thankfully, the following five apps are designed specifically to help you manage your finances. With these apps, you’ll know where every dime is spent and what you owe at all times, allowing you to start planning your company’s future rather than always trying to play catch up.

Got a business idea but little or no capital? Prosper is a new type of peer lending service which brings individual lenders and small business borrowers together. Each loanee creates a profile, describes what the loan will be used for, and what interest rate they are able to pay. Lenders indicate how much they are offering, at what rates, and who they want to offer sums to. So your loan may come from multiple sources, or a single person. Alternatively, if you already have a group of investors you already know, such as friends and family, Prosper manages the transaction’s lifecycle for you. Regardless of whom you borrow from, Prosper takes a small percentage for managing each loan. For the entrepreneur looking for alternative financing, peer lending can be a great solution. The only downside, however, is that everyone knows your business, literally and figuratively.

Dimewise lets you record your purchases/expenses and categorizes them. Then, when you’re wondering where the heck last month’s budget went to, you can produce a pretty pie chart showing you exactly what you’re spending your money on. You can also set recurring expenses as well as track balances in one or more accounts, which will make it easier to predict what your future months’ total expenses will be. Of course, you could do much of this with a spreadsheet, but Dimewise lets you do it from anywhere with a web browser, and saves you the time of setting up macros.

NetworthIQ, winner of an SEOmoz web2.0 award, will help you keep track of your company’s finances as well as your personal net worth. It also includes a fun tool that lets you compare your income to other entrepreneurs of the same age or industry, so you can keep track of your company’s success relative to your peers.

Wesabe goes a step further than both Dimewise and NetworthIQ by integrating its financial organization and planning tools with your bank account. This allows you to complete a monthly accounting report and simultaneously use that report to manage and pay your bills. In addition to this added function, Wesabe also serves as a meeting point for other entrepreneurs to discuss financial advice. While this application won’t be robust enough to meet the needs of larger companies, for small startups Wesabe can serve as a one-stop finance resource.

Whether you’re rolling in the dough or just squeaking by, every entrepreneur has to crunch the numbers. There’s no easier tool to do long financial equations than instacalc, which will also give you a variety of charting options to display your figures. And if you need to go beyond basic algebra, calcoolate will help you add up all your moola in ways that would make your calculus teacher proud.

For a small business to succeed, managers need to maximize the amount of time they spend on developing the business, and try to minimize the time they spend on mundane tasks like creating timesheets and invoices. The following three web2.0 apps are all designed to help you cut the time you have to spend on these mundane tasks while simultaneously increasing your company’s accuracy and effectiveness in doing them.

FreshBooks is an app designed with the web-based entrepreneur in mind. Not only does the program let you bill clients via email with professional-looking invoices, but clients can also pay you online via PayPal, Authorize.net, and other options through FreshBooks. The wide range of invoicing options is certainly enough for most small business owners, and because the generated billing reports the application generates can handle imported data, FreshBooks will work well with your current billing system.

If after a long work day you often find yourself trying to wonder what exactly you did with all your time, both you and your small business would probably benefit from some time tracking. GetHarvest offers ten reasons why you should use their time tracking solution, including professional quality reports, Internet-based access, daily data backups, and privacy. Perhaps the most important feature is the application’s ability to analyze the hours worked by your entire staff, thus enabling you to identify company-wide inefficiencies.

SidejobTrack is billed as a software tool for the part-time independent contractor. If your startup involves providing services for a number of different clients, this all-in-one finance app is ideal for you. With SidejobTrack you can organize all the various jobs and services you’re performing, send estimates, do invoicing, tax reporting and even manage projects.

A common ingredient in every small company’s success is teamwork and communication. We’ve got both covered here with five web applications designed for conferencing, voice communication, text chat, team/project management, live customer support, and workspace sharing.

The much celebrated product company 37 Signals has a suite of award-winning tools for collaboration and productivity: Campfire for group chat, Basecamp for collaboration and project management, and Backpack for organization (calendaring).Among these, the most useful tool for small business owners is Campfire. The application offers password-protected chat rooms to which you can invite clients, vendors, colleagues, and employees. These secured rooms are an excellent place to conduct negotiations that may involve sensitive company data without fear of having that information compromised.

If you’ve used any of the text chat IM clients such as AIM, Yahoo Messenger, Google Talk, or MSN Messenger (aka Windows Live Messenger), you’re aware of one fundamental problem: they don’t play nice together. If you have one contact on one IM and another contact using another service, how do you stay accessible to both of them? You could open a whole group of IM clients and chew up your free RAM memory, or you could use Meebo as a web-based bridge. For online companies where an increasing amount of business is conducted over IM clients, making yourself accessible to everyone through a bridging app like Meebo can mean the difference between success and failure.

Userplane offers a suite of communication and conferencing tools, the most useful of which is called Presence. Presence is the new hot niche tool in telecom, be it over the Internet, cellular networks, or the good old regular telephone system. The technology allows a communication system to “know” where a user is and to reroute calls and messages accordingly to the specific device he is near. For those entrepreneurs who work from home, the office, and the road, this app is really helpful.

Of all the above conferencing and collaboration solutions, none of them is suited for creative live interaction, such as having multiple people in different locations designing artwork or editing a document. ConceptShare solves the need for having a way to collaborate on a project in real-time by providing a creative workspace where employees can add to and modify graphic presentations. Changes made on the artwork or web design are even tagged by contributor, so different filtering combinations will allow your team to look at a variety of different filtering options.

Near-time offers collaboration tools including group calendars with event and activity tracking, private shared weblogs, author pages, categories and tagging, and more. Near-time is designed specifically for small businesses, work groups and professionals, which no doubt includes the collaborative entrepreneur.