Yahoo

You get to work on the most trafficked websites on the internet. The company uses and contributes to many open-source projects, which allows you to learn and become an expert on them. You get to work with some interesting and fun people. The company is not just about building portal websites; there are many interesting and challenging projects, mostly involving scaling of some sort. Some groups are practical and allow for innovation from within. The company encourages internal hacks, sponsoring hack day events both internally and externally.

Poor management decision-making.

Always wanting to play catch-up, rather than innovate.

Old-timers tend to be undervalued and under-compensated.

Upper management tends to bring in external hires rather than promote from within.

Performance follows the 80-20 rule, i.e., most projects are heavily dependent on 20% of the staff.

Yet, management tends to split bonuses across the entire team rather than reward the top 20% more.

Reward your top performers and let them lead.

Learn to listen within, else you'll start losing them.