Forums are very important. They let people ask questions and come together to discuss issues that are important. An internet forum is where people come together online to have a discussion or conversation in the form of posted messages. Forums are similar to chat rooms but they are not real time. Blog commenting is a form of forum where people discuss the blog post. A single conversation is called a thread on a forum and a forum is usually structured in a tree like form. Each topic is nested in a parent topic. Forums can be public or private depending on the setting of the forum. There are free forum software packages that can be installed on your server like phpBB and there is paid software like vBulletin. Here you can see features of Vbullentin
Ajax Union launched an Online Marketing Forum to train people with Online Marketing called Marketing Training Forum This forum allows people to post questions about Online Marketing and our staff answer those questions. This forum is based on a Joomla application and forum plugin.
Here are some top forums for online marketing and SEO.
http://forums.digitalpoint.com/
http://www.webmasterworld.com/
http://forums.seochat.com/
http://www.highrankings.com/forum/
http://seoforums.org/
http://forums.searchenginewatch.com/
http://www.v7n.com/
http://www.seo-guy.com/forum/
Please let me know in the comments if there are any other forums that you enjoy online.
Clearing Your DNS Cache
Your DNS cache stores the locations (IP addresses) of pages you have recently viewed. If the location of the page changes before the entry in your DNS cache is updated, you will be unable to access the page.
If you are encountering a high number of HTML 404 error codes, you may need to flush your DNS cache. Once you clear your DNS cache, your computer will query nameservers for the new DNS information you require.
The methods detailed below allow you to remove old and inaccurate DNS information that may result in 404 errors.
Windows® XP, 2000, or Vista®
Open the Start menu.
Go to Run.
If you do not see the Run command in Vista, search for “run” in the Search bar.
In the Run text box, type: ipconfig /flushdns
Press Enter or Return, and your cache will be flushed.
MacOS®
Go to Applications.
Go to Utilities.
Open the Terminal application.
Type: dscacheutil -flushcache
Press Enter or Return, and your cache will be flushed.