hi all, i know that after we drop some links over pages or blog comments, it is best to ping them. is there any ping software available that i can set up in my VPS, and then load up all the backlinks URL generated from xrumer, comment spammer, PR storm, digg comments, etc.. and instruct the software to auto ping these URLs at a suggested frequency (maybe twice weekly, etc). anyone has any idea how to do and set up this properly? and what is the best suggested frequency to ping a site with our backlink dropped there? thanks..