More layoffs?

Last year the company I work for laid off 600 people. 300 were where I work in corporate. Then they did a smaller layoff of about 250 people nationwide. In the beginning of this year they did a "restructuring" of some of the departments and terminated about 50 people and about 2 months ago they did another restructing and terminated only 20 people. They anounced yesterday that they are doing another layoff. Not as big as the first they said. You will know in 30 days if you are one of the ones affected. With so few people left, I am starting to get nervous. Is anyone else experiencing this where you work?