What are good examples of Knowledge Base software (for customer support)?

So you're typing out this lengthy, hour-long researched email to your customer. Did you wish you could store that same mail in your knowledgebase for future reference, while hitting the "send" button? This and more, you could do with Freshdesk's help desk software which has inbuilt a knowledgebase and self-service portal too. There's a free 30-day trial available. And if you are a three-man support team, the whole system is free forever! http://www.freshdesk.com/

I'd suggest you to have a look at PHPKB Knowledge Base Software from http://www.knowledgebase-script.com for setting up a customer suppprt knowledge base.

Zendesk offer a good knowledge base solution as part of their helpdesk. Fairly customizable with knowledge base and forum capabilities.

Full disclosure: I work for MindTouch. Why not check out MindTouch TCS? It's a completely cloud-based social knowledge base. Its powerful, collaborative functionality allows your customer support teams to easily share knowledge among team members and users which lowers customer support costs, helps juice SEO, creates engaged & loyal customers, increases lead gen, and offers personalization.   Another way that MindTouch TCS directly impacts a customer support reps' daily job is with our recent integration with Zendesk Help Desk software. With this integration, we're able to quickly and easily integrate the MindTouch social knowledge base into a Zendesk help desk support interface. Having product documentation available during support calls and chats provides a wider pool of knowledge to pull from, better arming support agents and accelerating ticket closure.     The widget also allows support agents to create new knowledge base articles – increasing the information made available to customers so that they can locate help on their own as well. You can read about the integration here: http://www.mindtouch.com/zendesk    You can learn more about MindTouch TCS and even start a free trial here: http://www.mindtouch.com/products

Our product http://grexit.com can help you very easily build a knowledge base out of your email communication - very useful for support. Do check it out, and let us know if you need any help getting started.

http://www.issuetrak.com -  Providing a higher level of service, significantly reducing the number of phone calls and emails support receives, and yield substantial time and cost savings for both the vendor and the customer. Your complete and total answer for Help Desk Software.

http://ProductPerks.com builds this for clients. See http://BuilderConnect.HBAPDX.org for government agencies & nonprofits, and http://ProductFinder.LiveViewGPS.com for an online retailer who sells GPS. For consultants, see http://KarenDunlap.org/tea-quiz

Hi there, I think you are missing an important one that has key intelligence that none of the above has, as it is able to capture tacit knowledge: http://www.amsphere.com/ With their organisational memory system, Kaams, not only you can access information at any time anywhere but also you will be able to have access to any employees tacit knowledge, as they an innovative way to capture knowledge via videos, audios, etc.  Kaams® stores that knowledge in an intuitive and innovative platform, allowing clients to harness the power of their organisation’s memory at any point in time. You can use their product to protect and de-risk their business, while others use it to capitalise on best practice to increase business outputs. At the same time they connect all this knowledge between each other making the search process way less painful than in other systems (e.g. SharePoint).

There is a simple and easy way to manage your knowledge base, so that yourself and your customers find information in an easily accessible manner. HappyFox lets you maintain a comprehensive knowledge base so that your work is made a lot simpler, and faster. http://www.happyfox.com There's also a trial, for you to test the product. And I am pretty sure you won't be disappointed.