The great thing from guestbooks/imageboards/... is that you don't need to register to post. The only thing the board operators can do is ban your IP or ban your website link. Now, as some of you guys maybe know I always script in PERL when it comes to spamming methods. PERL is great because it is fast and can work without even be noticed. So couple of days I taught to myself, why don't I just create a spambot for imageboards, most imageboards use the same POST method and if not, they are easily copy able because they almost never use CAPTCHA or any anti-bot script. So I've chosen some imageboards TechChan or RollaChan. These Chans have really low visitors and almost no moderators/admins that check every 15 minutes. Still Google loves some of them and even gives them PR 3-4 for useless content. These boards also have a ******** link and most of them just link trough so it's so easy. Now, I've gathered a big list of these boards with almost no moderation or changes and made a perl script that would spam all topics on the first page with my link. Because of the low visitors you have some unique content on the page itself where you link stands so it doesn't look like spam but also google has the time to pick-up your link without that it's been erased from the board before google has found it. I'm currently developing my script for better performance and even randomized sentences (easy ) but I will probably not share this. I just wanted to give you guys an idea on how to get more backlinks to your website.