Alan Knox reflects upon Hebrews 10:19-25 in his posting A reminder of our priesthood from Hebrews. He believes that the phrase "with our hearts sprinkled clean from an evil conscience and our bodies washed with pure water" refers not to baptism, but to the cleansing and consecration rites of the priests in the OT. In the new covenant era we are able to approach God as priests through the cleansing and consecrating he brings.
Tommy Wasserman reports that he is working on A Commentary on Hebrews for the Swedish commentary series, Nya Testamentets Budskap (NTB). He asks the question, "If you were to choose one text-critical problem of exegetical significance in Hebrews what would you pick?" See the discussion regarding this question.
The Bibbiablog has a blurb on the new book by Clare Rothschild, Hebrews as Pseudepigraphon.