As populations become increasingly computer literate, Web-based surveys will become a less problematic and more cost efficient medium to reach larger audiences. While extensive research has been conducted on prompting efforts for mail surveys, limited focus has been placed on effective prompting procedures for web-based surveys. It has been shown that using multiple contacts and modes yields higher survey response rates. Email prompting offers convenient accessibility to completing an online questionnaire that is not possible when using other contact mechanisms. This paper will focus on the results of the prompting efforts for the Gates Millennium Scholars Tracking and Longitudinal Study First Follow-up Web survey. It will examine the relative effects of a targeted email prompting effort throughout the last month of data collection, after more conventional prompting techniques were implemented. It will answer the question "Does email prompting help to increase response rates when conducting a Web based survey?" The paper will also discuss features unique to email prompts which can further encourage respondents to complete an online questionnaire. Preliminary results of the email prompts indicate that emails are effective at increasing response rates. These findings may help to inform future prompting efforts for Web-based surveys and shed light on the value of email prompting.