Amy Gahran posted a piece that may help you explain blogs to Mom, mine or yours, or it may help you understand blogs yourself.
Among other things, Amy notes that blogs are simply Web sites that are united by these characteristics:
- Format (newest stuff is at the top)
- Linkability (I can get back to this)
- Content management tools (blogging tools)
- Common features (comments, archives, searches, etc.)
I like it when people de-mystify things. Blogging, trackbacks, permalinks -- they're just fancy names for boring things. How about "my thoughts," "people who liked my thoughts," "a bookmark for a specific thought" -- these don't sound so scary to me, and maybe not to other people.