Monster ( MWW ) recently announced its Q2 earnings results. Consistent with our preview note on Monster , the company witnessed solid growth in its career services business that expanded 28% over last year. The increase is due to multiple factors, including a complete integration with Yahoo's ( YHOO ) HotJobs, solid international growth and indications of increased hiring in the U.S. The company's Achilles' heel remains its Internet advertising & fees business, which has posted revenues that are relatively flat over the last year owing to reduced lead generation and a decline in military recruitment . We also want to see more convincing evidence that Monster is benefiting from the uptick in the N. America business as profit margins suffered in this area vs. last year comparables. Monster competes in the online job search market with niche players like careerbuilder.com and jobcentral.com and faces growing competition from social networks like LinkedIn ( LNKD ), Faceboo...