Google logos in 2007 c2w answers
1. NEW YEAR DAY
2. VALENTINE'S DAY
3. MOTHER'S DAY
4. GOOGLE'S 9TH BIRTHDAY
5. SPUTNIK DAY
6. GOOGLE DOODLE
7. VETERaN's DAY
8. EARTH DAY
http://in.c2w.com/twisters/74187-Google-logos-in-2007