Here's the one thing I like when reviewing resumes - putting years of experience, in order, with the technology, so something like this...
Experience / Computer Skills:
7 years: C/C++
6 years: ASP/SQL server 7
4 years: PHP/MYSQL
2 years: Unix Shell Scripting/Sed/AWK/TCL/TK
1 year: Visual Basic
That makes it incredibly easy for me to find out who has the experience I am looking for.
Otherwise, how do I know you have not just done them for a month?