These people I've worked with have been kind enough to write about me.
"Nicely done! Cool to see this kind of monitoring on an app level. Places like akamai and their WAF services cost so much. We implement this kind of detection on the edge since we want to do internal daily scans." Penetration Tester (name withheld).
"Detlef consulted me when I led SEO globally at Motorola. Detlef was one of the first people I turned to for expertise. A true subject matter expert's expert, he possesses amazing depth on SEO. I just like to give credit where it's due. The depth of your insights always blew me away (I never met anyone whose depth of knowledge exceeded yours)."
"Detlef's search marketing knowledge and experience are superior. He is innovative, creative and a fantastic communicator. Detlef is a highly esteemed member of the search community, respected by peers and clients alike." Jim Stob, President of Position Technologies Inc.
"If you've read about search marketing, you've come across Detlef Johnson's name. Former moderator of the famed I-Search mailing list, Detlef jumped back into the world by launching SearchReturn. A big welcome back to you Detlef. Now that you've resurrected the I-Search mailing list that was your claim to fame. People know you as the longtime moderator of that mailing list, and you're back, and out doing it again.
I just got my first issue (SearchReturn #005: Microsoft AOL) and lots of good stuff in it already. It's just kind of nice, we had things start off with mailing lists, that's how we all connected in the SEO world. I'm sure you remember at the first Search Engine Strategies show, all these people who read I-Search were walking around going: 'Are you so-and-so?' and 'Are you so-and-so?' We didn't really have search forums and stuff."
"Detlef stands among the best known and universally respected personalities in the industry. He is certainly one of the most colorful and outspoken. One of the dozen or so pioneers, Detlef started his career in Bend Oregon in the mid 1990's. In the early days, Detlef shared his discoveries, knowledge and innovative techniques in hundreds of articles and at countless conferences, establishing himself as one of the primary teachers of second and third generations. Through his support and participation in many of the annual conferences and his collaborative way of thinking, he is considered a close friend by many people in the industry. Detlef is one of the first people we contact for advice and opinion."