I have some suggestions for improving of Stack Overflow, but I don't know if there is any other place where I can give my suggestions.
Should I post them here?
I have some suggestions for improving of Stack Overflow, but I don't know if there is any other place where I can give my suggestions.
Should I post them here?
Yes, this is the right place.
Usually you'll want to tag your suggestions with feature-request, but it depends somewhat on what they are. feature-request is fine for posts that are proposing new site features or changes to how existing site features work. But if you're just bringing up site policy changes, for example, discussion would be more appropriate.
FYI: The new location for posting Stack Overflow feature requests is at https://meta.stackoverflow.com (not https://meta.stackexchange.com).
Details: Operation 'Split, All The Metas!' Shall Commence On April 16, 2014