Recently, methyl formate, glycolaldehyde, and acetic acid have been detected in the Interstellar Medium, ISM. The rate constants, a, for dissociative electron-ion recombination of protonated gycolaldehyde, (HOCH2CHO)H+, and protonated methyl formate, (HCOOCH3)H+, have been determined at 300 K in a variable temperature flowing afterglow using a Langmuir probe to obtain the electron density. The recombination rate constants at 300 K are 3.2 x 10(-7) cm(3) s(-1) for protonated methyl formate and 7.5 x 10(-7) cm(3) s(-1) for protonated glycolaldehyde. The recombination rate constant of protonated acetic acid could not be directly measured, but it appears to have a rate constant, alpha(e), on the 10(-7) cm(3) s(-1) scale. Several high- and low-temperature measurements for protonated methyl formate were made. In addition, an alpha(e) measurement at 220 K for protonated glycolaldehyde was performed. The astrochemical implications of the rates of recombination, alpha(e), and protonation routes are discussed.