[blackhaz]

My company is operating for, knocking wood, 20 years. We have worked with about a handful of SEO agencies, including some prominent ones, with budgets comparable to what is mentioned in the article. None of them have delivered anything tangible. Temporary increases in inbound leads can be attributed to changes in Google algorithms - they were followed by equivalent decreases. Overall, I'd say that the most fruitful effort for all that time was adding unique content valuable to fellow humans.