This study investigated Perceived Usefulness, Perceived Ease of Use and Perceived Enjoyment as correlates of EIRs use among lecturers in private universities in Nigeria. A correlation type of survey research design was adopted in this study. A single stage random sampling technique was used to select 2086 lecturers from the sampled (14) universities out of (21) universities with a population size of 3308 in South-West Nigeria. The survey instruments titled “motivational (Perceived Usefulness, Perceived ease of use and Perceived Enjoyment and use of (EIR) Questionnaire” (SEPFEIRU Q) was administered. Data generated were analyzed using frequency, percentage, mean, standard deviation, Pearson Moment Correlation and Multiple Regression (R2) analysis at 0.05 significance level. The finding revealed that Perceived Usefulness (r=.980** P<.05) Perceived ease of use .982** Perceived enjoyment (r=.986**, P <.05) were significantly related with utilization of electronic information resources. The study also found that the linear combination of Perceived Usefulness, Perceived Ease of Use and Perceived Enjoyment accounted for 99% variance in use of EIR among respondents. The study therefore recommended that university management should provide more effective use of current internet education systems to increase individual internet knowledge by having a sort of seminars/workshop to intimate and update the lecturers on the help messages always displayed on the screen during search.