Windows only: Explorer plug-in Link Shell Extension creates symbolic links easily through the context menu — very useful for those without command-line geek skills.
Once you've installed the extension, you can simply highlight the folder you want to link to, choose Pick Link Source from the context menu, and then use the Drop As -> Hardlink Clone function wherever you want the link to be. We've talked about symlinks before, and even showed some useful tips like syncing files and folders outside your Dropbox or syncing your Pidgin profile across PCs using Dropbox, but if the command-line method is a little too complicated for you, Link Shell Extension might be just the ticket.
Link Shell Extension is a free download for Windows only. For more on using this tool, be sure to check out the complete How-To Geek guide to using symlinks from the GUI or the command line.