Online job demand in Los Angeles slipped slightly in June, led by declines in demand for military and aerospace jobs, according to a monthly survey of online job listings by Monster Worldwide Inc.

The Monster Local Employment Index for Los Angeles dropped two points in June to 102, down from 104 in May but up from 97 in June 2005. The index peaked at 105 in March. A reading of 100 is considered the baseline.

The overall drop was caused by declines in a majority of the 22 categories tracked. The steepest drop was in the military/aerospace sector (eight points), followed by sales jobs (five points) and the architecture/engineering industry (four points).

Protective service occupations registered the steepest rise, jumping eight points. Also rising were installation/maintenance/repair (three points) and food preparation/service (two points).

Monster Worldwide is the parent company of Monster, an online career and placement service. The survey culls from listings on Monster’s service and from more than 1,500 other online job websites.