It seems like I've noticed a proliferation post panda and penguin, not to mention a shift toward how it's viewed as a practice (SEOs used to look down on it as the last resort of spammers), but now it seems more legitimized.
Obviously, it all hinges on how it's approached.
- only if relevant
- only if in relevant niche
- and obviously not if packed with spammy anchor links
Does anyone use this as a regular tool in their arsenal, and what % of your strategy does it comprise?