Biotech stocks are well represented in this week’s Big Cap 20, while LinkedIn (LNKD) and Facebook (FB) are pacing a rebound in Internet stocks. The Medical-Biomedical/Biotech industry has erased slightly more than half its losses since falling sharply from a February high on concerns that stocks in the group were overvalued. The once high-flying group is still depressed, ranked No. 113 out of 197 as of Monday’s IBD.