Just released Linkman 7.60 (Freeware and Shareware versions available).
Another PowerMarks user here; been using it for years...
I am just trying Linkman (pro 188.8.131.52) and though it is really pretty great I'd like to offer a couple of suggestions to the developer regarding the query search:
1) Linkman's defaulting to a substring search is very inefficient. When I type in at (say for "attorney" or "atlas" or "athlon", etc.) I don't also want "battery", "rattle", "collimator", "estate", "matthey", and every other keyword that has at somewhere in the string. That just means I will have to type in additional keywords to narrow the search, or else backspace and re-enter my search term as a literal string with quote marks. On the rare occasion that I do want to perform a substring search I would be very happy to add wildcard asterisks to the query: *at*; but this should not be the default search pattern.
Here is a practical example: A search query of at b narrows my 2,000+ bookmarks to just four using PowerMarks. Linkman yields nearly 300 bookmarks for the same query, requiring additional typing or literal string quoting. at bo narrows to 2 for Powermarks, but there still remain 54 for Linkman... too many to glance through. Linkman consistently requires a lot more typing to narrow a search, due to the default substring interpretation of queries.
2) I also don't care for autocompletion when I'm typing in a search query. More often than not I end up having to delete the autocompleted part. I think people who are good typists generally find autocompletion to be annoying. For those who do like it perhaps it could be made an option.
I hope these suggestions are useful. I'll keep an eye on Linkman but in the meantime, still using PowerMarks...