OK, I know a prety fair amount of scales, but just dont know the names. How do you guys keep track of all the scales you know. For instance this scale....

e|------------------------------5-7-8----
B|------------------------5-7-8----------
G|------------------5-7-8----------------
D|------------5-6-7----------------------
A|-------5-6-7---------------------------
E|-5-7-8---------------------------------

This one is very popular and is played on almost every Kirk Hammett solo and a few of Van Halen's songs are played on this as well.

And this one...?

e|------------------------------5-6-8----
B|------------------------5-6-8----------
G|------------------5-7-----------------
D|------------5-7-8----------------------
A|-------5-7-8---------------------------
E|---------------------------------------

Any help would be greatly appreciated and if anyone could point me in the right direction, that would be great too.

Thanks in advance :D