Lexical bundles are known as important elements of coherent discourse that have been the subject of much research. While the previous research has been mainly concerned with exploring variations in the use of these word sequences across different registers and disciplines, very few studies have addressed the use of some particular groups of lexical bundles within some types of academic writing. To probe in to the possible generic variations, this research focused on anticipatory it bundles as a particular structural group of these word sequences. More specifically, this study chose to investigate range, frequency, and function of these word clusters in applied linguistics published and unpublished writings. Through the use of two big corpora and text analysis programs, this study found that it bundles were used relatively frequently in both published and unpublished writings. Functional analysis also showed that it bundles served a wide variety of functions in both types of writings. Notwithstanding these findings, this study also revealed that some it bundles commonly used in unpublished writing did not count as bundles in published writing.