Wow...I haven't expected such a great tips and comments in the first place... thank you all .This means a lot to me in terms of motivation.I have some 100k pix at my harddisc...images from all around the world...mostly Europe, because I am traveling most of my time.
So the general strategy would be: keep uploading and tag keys by myself (most of the keywords I am getting from keyboarding tool,which I found now thats not actually working as wel)