Twitter is an enormously popular tool at the moment and literally thousands of third party companies have starting developing applications that can enhance its capabilities, but which of these are good and which ones can help teachers to grow their network and use this tool in a more effective way? Karen Schweitzer from the About.com Guide to Business School has volunteered the guest posting on her top 25 Twitter applications. Thanks Karen.

The social web is an often overlooked resource full of excellent information. Whether you're working on a research project, building your brand, or just trying to find some information, look to social media sites to find what you're looking for. Here, we'll take a look at 100 tips and tools for effectively researching the social web.