alexa

I don't know what is going on but there is strange things happening about Alexa these days. I have been buying some text links for seo for Google but some how my site loosing its score from Alexa its simply impossible because traffic going up. but when I see that Google ranked as 4. in Alexa top list I understand that there must be some thing going on Alexa. I dunno what its yet. it may be changing its algorithm or something. but it effects even Google. think about it.....