NOTE FROM TIM: I've just taken the liberty of changing a couple sentences and adding some quotes to clarify this piece. So if you already read this post in its first day on the blog, please read it again. Having two writers contributing to this piece allowed a couple things through we'd normally have caught. They've now been corrected.
(David and Tim, w/thanks to Dave) Search for "Langberg" on the Christians for Biblical Equality (CBE) web site and fifty-seven links are returned offering products produced by Westminster Theological Seminary adjunct professor Diane Langberg. (Here and here are sample pages.)

Check out CBE's directory for a recommended counselor in Pennsylvania and you will find Calvary Presbyterian Church (PCA) member Diane Langberg.
Several years ago, controversy erupted within the Presbyterian Church in America over whether or not a certain woman actually preached at Covenant Theological Seminary. The controversy came to a head at the 29th General Assembly when Covenant's president, Dr. Bryan Chapell, explained the chapel address had mostly not been preaching although some parts strayed into "sermonic (and) some applicatory material." Bryan Chapell explained to the Assembly:
That Diane Langberg had been told ahead of time what the standards were for her speaking during the chapel time;
That after she spoke at Covenant Seminary, Diane Langberg received a letter reminding her of the standards, and expressing concern that those standards had not been followed; and
That the administration of Covenant Seminary met with students to explain the situation and to assure the seminary community that what had happened was not according to the standards they were committed to upholding.
Note that the chapel message at the root of the controversy was given by Dr. Diane Langberg. Yet, despite her being at the center of this controversy...
Two years ago, the Christian education arm of the Presbyterian Church in America, Christian Education and Publications (CE&P), held its 2006 International Women in the Church Conference in Atlanta. The three women employed to teach the 4,000 assembled women of the PCA? Joni Eareckson Tada, Paige Benton Brown, and Dr. Diane Langberg.
Again, at Women in the Church's (WIC) 2007 Leadership Training Conference Dr. Diane Langberg was a plenary speaker.
Diane Langberg was principal speaker at Tenth Presbyterian (PCA) Church's 2008 TenthWomen Conference.
And this same Diane Langberg is featured speaker at the Alliance of Confessing Evangelicals' Princeton Regional Conference on Reformed Theology--together with Al Mohler and Don Carson.