For as long as I can remember, Googlebots have crawled 200-300 pages a day on my site. Every so often the number would be higher, but not by much.
Lately, though, I'm seeing 600, 800, 1000 and even 2000 pages crawled on some days. I don't have a lot of new content, so I don't know why this is happening.
The timing of this is also odd because it coincides with a dramatic increase in the number of incoming links that Webmaster Tools shows for my site. Also for as long as I can remember, WMT showed about 4,000 to 5,000 external links. Now it's showing 15,000 or so.
Whenever Google does something unusual, I get scared.
Has anyone else been experiencing this?