Sorry if any of these sound stupid but it always pays to be sure! It would be more foolish not to ask as the old saying goes. So, I have heard that when placing blog comments I should use different IPs as google can tell where the comments were placed from and devalue your efforts if they're all from the same location. Firstly, I'd just like someone to confirm that this is true. I want to diversify my link strategy in general and place more links on forums, social media sites and sites like reddit, stumbleupon, flickr etc. Is the same true for placing links on these sites as well? Should I make sure that I use different IPs (and more specifically from a wide range of geographic locations) for each profile to maximise results? Lastly, assuming all of the above is true, should I be careful not to change my IP too often? Ie. Will I run into problems and get flagged if I have a forum profile that has a comment placed from the US say, then an hour later from Japan? One last thing. I want to create some 'supporting blogs' where I plan to post spun content on my niche as well as some decent original content, and the occasional do follow link to my money sites. I had planned on making most of these on sites like blogger and wordpress (NOT-self hosted). Should I create and update these using a different IP too? Will Google realise if they originate from the same IP as my money sites and devalue my links as a result? Any help would be greatly appreciated. I've learnt so much from this forum already, and despite keeping up with new posts and searching I can't always find the answer to my questions. Please accept my apologies if all of this has already been covered elsewhere.