SERPS will rise and fall. Just keep focusing on building quality backlinks for your site. Adding content to your site on a regular basis will help as well.
Hi friends i need you help on reviewing my site. My site rank no 1 in the keyword sikat ang pinoy but this week my site was down to 8. can you review what happen and what are the things that i will do to make it back?
Here is the link Sikat Ang Pinoy
SERPS are always changing. Like 5Starpix said, you need to continually create backlinks.
Social bookmarking helps a lot!
Wellsaid others.. They will keep fluctuating. But whenever you get a drop, try to change the anchor text to a variate (instead of exact anchor text).. And like you did above, get 1-2 good forum links or blogroll when you're dropped. They help.