Buy a display with I2C interface. Or use a shift register (connected to SPI bus) to create 8 outputs for the display.
You have a SPI bus (for the Ethernet Shield) and a I2C bus. So make use of that.
can you share me the where i can get it . Which compatible with arduino Board. and i gone through link after your post. but seems it require more pin that nomal
http://arduino-info.wikispaces.com/LCD-Blue-I2C
Chipkituno32 i wrongly pasted , It has sufficient pins to do program and also equivalent clone of arduino with More No I/OS and cost wise it is twice of arduino UNO.